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Do humans and chimps really share nearly 99% of their DNA?The frequently cited 99% similarity between human and chimp DNA overlooks key differences in the genomes.
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Heartbreaking image shows a sloth clinging to a barbed wire fence because it was the closest thing resembling a treeFrench photographer Emmanuel Tardy's image of a sloth clinging to a post in Costa Rica is one of the images from the 2025 Wildlife Photographer of the Year award.
27 Commentsland-mammals -
Pallas's cat: One of the world's oldest felines that stands on its bushy tail to keep its paws warmPallas's cat is a small wild cat native to Central Asia with short legs and dense fur, making it look bigger than it really is — but the yelps it makes in stressful situations betray its size.
18 Commentscats -
Earth's early primates evolved in the cold — not the tropicsOpinion Fossil spore and pollen data reveal our early ancestors evolved in cold, dry environments, with some even colonizing Arctic regions.
Opinion -
What's the difference between a llama and an alpaca?Llamas are closely related to alpacas, so how can you tell these South American camelids apart?
4 Commentsland-mammals -
Best bat detectors in 2025 — Hear bats and their echolocationConnect with nature, even after the sun sets, with one of these best bat detectors and listen to the clicking of their echolocation at twilight
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Texas puma genes rescue Florida panthers from extinction — for nowThe low number of remaining Florida panthers has led to severe inbreeding. But now, genes from Texas pumas are helping to save them from extinction.
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Why do cats and dogs eat grass?There are many theories for why cats and dogs eat grass, and some could be "old wives' tales."
8 Commentscats -
Aye-ayes: The strange nocturnal lemurs with long, creepy fingersAye-ayes are remarkable thanks to their extra-long, bony middle fingers, which they use to locate grubs and pick their noses.
land-mammals
