A Sumatran tiger celebrates the Chinese New Year at the San Francisco Zoo in California with a treat-filled dragon made from cardboard boxes and nontoxic paint.
Photograph by Justin Sullivan
Even polar bears enjoy playing with toys! Willy enjoys toting around this crate in his 115,000-gallon pool at the North Carolina Zoo.
Photograph by Valerie Abbott, Barcroft Media, Getty Images
Keepers at the London Zoo in England hang fruits and veggies for Galápagos tortoises, which use their long necks and beaklike mouths to reach the snacks.
Photograph by John Phillips, UK Press via Getty Images
An orangutan named Nonja at the Schönbrunn Zoo in Vienna, Austria, demonstrates her smarts by stacking blocks.
Photograph courtesy Schönbrunn Zoo, Norbert Potensky
Bao Bao, a giant panda at Smithsonian’s National Zoo in Washington, D.C., checks out her birthday gift: a box of apple slices and bamboo.
Photograph courtesy Smithsonian’s National Zoo
Ring-tailed lemurs use their fingers to easily grip things, from fruit in the forests of Madagascar to toy beads at England’s Whipsnade Zoo.
Photograph by Carl Court
A wallaby at the Taronga Zoo in Sydney, Australia, eats a holiday-themed snack made with pinecones, peanut butter, grapes, and native flowers.
Photograph by Cameron Spencer
By watching adults in the group, young bonobos learn what’s OK to eat. For this little one at the Cincinnati Zoo in Ohio, a goody-filled ghost passed the test.
Photograph courtesy Cincinnati Zoo
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