Baby Animals
Watch Wolf Puppies Play Fetch
New research suggests canines' love for chasing and returning tossed balls wasn't purely a product of domestication
Cows Communicate With Unique Moos
A new study has found that the animals use distinct vocalizations across a range of emotional contexts
Diego, the 100-Year-Old Tortoise Who Fathered 900 Babies, Returns to the Wild
The breeding program brought the Española tortoise population back from the brink
Will Love Bloom Between Two Sloths at the National Zoo?
Keepers are gradually introducing Athena, who made her debut at the zoo in December, to fellow two-toed sloth Vlad. Sparks have not flown—yet
In a First, Scientists Film a Puffin Scratching Itself With a Stick
Behold the first evidence of tool use in seabirds
Baby Black Rhino Born at Michigan Zoo on Christmas Eve
The birth of the yet-to-be-named male calf marks a milestone for conservationists trying to save the critically endangered species
Panda Bears Have Teeny Tiny Babies, and We Don't Know Why
Panda moms are 900 times bigger than their cubs and a new study disputes the theory it's related to hibernation
Invasive Mice Are Gnawing the Scalps of Endangered Albatrosses
The mice already kill an estimated 2 million seabird chicks per year, but they now target breeding adults
Was This 18,000-Year-Old Puppy Frozen in Siberian Permafrost the Ancestor of Wolves, Dogs or Both?
DNA tests on the well-preserved remains can't determine whether the little canine was wild or domestic
Meet the ‘Unicorn Puppy’ With an Extra Tail on His Head
Narwhal’s unique appendage may be the remnant of his parasitic twin
Archaeologists Unearth Hollowed-Out Whale Vertebra Containing Human Jawbone, Remains of Newborn Lambs
Iron Age Scots made the unusual vessel with the bone of a fin whale, Earth's second largest whale species
Babies May Understand Counting Before They Fully Understand Numbers
By tempting an adorable pool of subjects with toys, a new study found that infants associate counting with quantities
North Atlantic Right Whale Mamas Whisper to Their Babies to Keep Them Safe
By using soft grunts instead of their normal loud call, it's believed they avoid the attention of orcas, sharks and other predators
An Angry Walrus Mother Derailed a Russian Naval Expedition
The hulking marine mammal was likely trying to protect her calves
Help the Shedd Aquarium Name Its Rescued Otter Pups
The aquarium hopes the contest will help raise awareness about southern sea otters’ ongoing conservation needs
Spotted in Kenya: A Baby Zebra With Polka Dots
Tira, as the foal has been named, appears to have a condition known as “pseudomelanism”—and it may threaten his survival
Where Does the Word 'Teetotaler' Come From? And More Questions From Our Readers
You've got questions, we've got experts
14 Fun Facts About Giant Pandas
Mother Mei Xiang’s annual ambiguous maternal behaviors always deliver heightened anticipation at the National Zoo
Eggs Successfully Collected from the Last Two Northern White Rhinos
Advances in fertility science will hopefully allow researchers to implant embryos of the species into surrogate southern white rhinos
Florida Authorities Investigate a Disorder Affecting Panthers' Ability to Walk
The crippling condition appears to hamper the big cats’ back leg coordination
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