Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave

Otters enjoy ice treats filled with smelt and carrots at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Otters enjoy ice treats filled with smelt and carrots at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Otters enjoy ice treats filled with smelt and carrots at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Otters enjoy ice treats filled with smelt and carrots at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Otters enjoy ice treats filled with smelt and carrots at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Otters enjoy ice treats filled with smelt and carrots at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Otters enjoy ice treats filled with smelt and carrots at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Otters enjoy ice treats filled with smelt and carrots at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Otters enjoy ice treats filled with smelt and carrots at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Otters enjoy ice treats filled with smelt and carrots at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Otters enjoy ice treats filled with smelt and carrots at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Otters enjoy ice treats filled with smelt and carrots at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Anteaters get a gentle shower from a sprinkler at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Fast fact: anteaters walk on their knuckles to keep their large claws sharp. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Fast fact: anteaters walk on their knuckles to keep their large claws sharp. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
(credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
(credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
A Mallard waits for a zoo patrons to toss a snack her way at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave A Mallard waits for a zoo patrons to toss a snack her way at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave Maple flavored ice treats, restaurant-grade smelt and sprinklers are on the agenda at the Detroit Zoo in Royal Oak on July 17, 2013. A heat wave has triggered a summertime ritual for the zoo animals aimed at keeping them cool and stimulated during the dog days of summer. (credit: George Fox/CBS Detroit)
A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
Detroit Zoo Enrichment Keeps Animals Cool During Heat Wave A sprinkler fills a small mud wallow at the warthog habitat. Animals enjoy "Cold Play" enrichment at the Detroit Zoo in Royal Oak on July 17, 2013. (credit: George Fox/CBS Detroit)
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