Mammals
How an Orca Skeleton Made Its Way From Florida to the Smithsonian
Washed up in a rare stranding event, the newly collected specimen will offer rich exploration for researchers
What's Killing Minnesota's Moose? Studies Reveal Sites of Deadly Brainworm Transmission
Carried by deer and spread by snails and slugs, a lethal parasite is infecting the large ungulates, which have recently declined dramatically
Farmers Are Breeding Cows to Withstand Heat Waves
A gene that occurs naturally in some cow breeds may be the key to helping cattle thrive as temperatures rise because of climate change
See the Rare Spotless Giraffe Born at a Tennessee Zoo
The baby might be the only all-brown giraffe on the planet, as the last one on record was born in 1972
Lolita the Orca Dies After More Than 50 Years in Captivity
Several groups were working to remove the 7,000-pound creature from the Miami Seaquarium and return her to the ocean at the time of her death
New Pack of Endangered Gray Wolves Discovered in California
The pack, which consists of a mother and her four offspring, is now the state’s southernmost wolf group
Fully Intact Giant Panda Skeleton Discovered in Chinese Emperor's 2,000-Year-Old Tomb
Archaeologists previously found a panda skull in a nearby Han burial, but its torso was missing
Fossil of Tiny, Extinct Whale Discovered in Egypt, Named for King Tut
The species was around the size of a bottlenose dolphin and thrived 41 million years ago
Sun Bears Are Not Humans in Disguise, but They Deserve to Go Viral Anyway
Learn five reasons the ursines are so amazing, including their ten-inch-long tongues
Tickling Rats Reveals a Brain Region Linked to Laughter and Play
This group of neurons could someday inform the treatment of depression and anxiety in humans, scientists say
Fishermen Spot Rare Endangered Rice's Whale in the Gulf of Mexico
Scientists say no more than 100 individuals of the species exist in the wild, placing the Rice's whale among the scarcest marine mammals in the world
Watch Tens of Thousands of Beluga Whales Migrate With These Live Streams
The marine mammals are gathering in Canada's Hudson Bay and Churchill River—and their journey is a reminder of sea ice's importance
Aging Mother Orcas Keep Their Sons Out of Fights
In a new study, male orcas with mothers that had gone through menopause showed less tooth scarring on their fins compared to other males
Rare Pink Dolphins Spotted Swimming in Louisiana River
The cetaceans are likely bottlenose dolphins with albinism, and one could be "Pinky," an animal first seen in the area in 2007
Rare Fossil May Show a Small Mammal Attacking a Dinosaur
The well-preserved bones could upend the traditional view of dinosaurs as predators and mammals as prey, if the findings are confirmed
A Surfboard-Snatching Sea Otter Is Vexing Wildlife Officials in California
While the animal's antics may look cute, the dangerous behavior could bring harm to humans or force authorities to euthanize the endangered mammal
Tourists Spot 'Incredibly Rare' Whales Off California Coast
Cuvier's beaked whales can hold their breath for hours and don't spend much time at the surface, making them mysterious—and a treat to see
Algae Is Making Sea Lions More Aggressive in California
A toxin present in algal blooms is moving through the food chain, leading to the deaths of sea lions and dolphins
Dolphins Use Baby Talk When Their Calves Are Around
Like humans, female dolphins make higher-pitched vocalizations when communicating with their young
Eight Menacing Saber-Toothed Creatures That Stalked the Earth Long Ago
From before the dinosaurs to the Ice Age, several mammals and their forerunners sported the iconic, curved teeth
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