adorable animals Critically endangered mountain tapir celebrates his 26th birthday Jennifer Sandlin

Science Scientists cry foul on Colossal's "de-extincted Dire Wolf" claim Gail Sherman

Delightful Creatures First time mom at 100: endangered tortoises hatch at Philly zoo Gail Sherman

Nature My Octopus Teacher director returns, this time with a pangolin Gail Sherman

water How an Angel shark's appearance changes when it yawns Popkin

girl scouts You can help decide the next Girl Scout Cookie Mascot: will it be a bison, ferret, bat, or mountain goat? Jennifer Sandlin

Science The bad news: orcas are teaching their young to ram boats. The good news: it's just a game Rob Beschizza

Delightful Creatures An Ohio zoo staff was shocked when their "male" gorilla gave birth Carla Sinclair

animals Adorable critically-endangered gorilla born at the US National Zoo David Pescovitz

Delightful Creatures Watch: Andean condor reunited with the man who saved it Elías Villoro

politics Senate votes to remove the endangered lesser prairie-chicken from the endangered species list Jennifer Sandlin

echidnas Behold this adorable echidna puggle! Jennifer Sandlin

adorable creatures Giraffes, waiting out rain, caught on Taronga Zoo's Savannah Cam Jennifer Sandlin

babies Congrats to tortoise couple Mr. and Mrs. Pickles on the arrival of their three hatchlings, Dill, Gherkin, and Jalapeño Jennifer Sandlin

endangered species Monarch butterfly classified as endangered species Andrew Yi

Delightful Creatures Ivory-billed woodpecker and 22 other species declared extinct Rob Beschizza

animals Absolutely massive smalltooth sawfish washed up in Florida David Pescovitz

reptiles This may be the tiniest reptile in the world David Pescovitz

picks Taylor Swift escapes her enclosure at Sacramento Zoo Rob Beschizza

war The last male white rhino in the world has died Séamus Bellamy