How whales made the dramatic evolutionary shift from land to the sea

All whales and dolphins are descended from terrestrial mammals, ancient creatures that were very similar to the modern hippopotamus. Now, a fascinating new genetics study shows the incredible evolutionary changes these animals had to experience to become the perfectly adapted marine animals we see today. » 11/25/13 7:40am 11/25/13 7:40am

How a whale can hold its breath underwater for up to an hour

Unlike humans, many whales can go on hour-long dives without needing to breathe. But no one has been sure how they did it. Now, new research shows it all comes down to a specially adapted oxygen-binding protein in the animals' muscle tissues — a finding that could someday prove valuable in medicine. » 6/14/13 4:30pm 6/14/13 4:30pm

This 'grave robbing' mammal outsmarted the dinosaurs by going…

Back during the late Cretaceous period there lived a stocky, mole-like mammal that spent its days burrowing tunnels underground. Called Necrolestes patagonensis, it managed to survive the Age of the Dinosaurs and live for another 45 million years before finally dying out. And as scientists have recently learned,… » 11/20/12 7:40am 11/20/12 7:40am

So this new species of monkey looks exactly like Alan Tudyk

It's not every day that scientists identify a brand new species of mammal. Rarer still is a confirmed discovery of a new species of primate — the mammalian order that encompasses humans, monkeys and apes. Now, for only the second time in 28 years, a new species of monkey has been identified in Africa. » 9/13/12 12:08pm 9/13/12 12:08pm

A video guide to artificially inseminating a rhinoceros

At ZSL Whipsnade Zoo in Bedfordshire, England, the staff recently had the luxurious task of artificially inseminating a southern white rhino. And because male rhinoceros gametes don't rain from the sky like manna from heaven, the zookeepers had to extract semen from an ornery horned fellow. I may have watched this… » 9/17/11 1:00pm 9/17/11 1:00pm