biology
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Male Mice Produce Rat Sperm in Novel Chimera Experiment
Cue the Jurassic Park theme song: Scientists in Switzerland appear to have pulled off a remarkable feat, creating sterile and seemingly healthy mice that can produce the sperm cells of a rat. These rodent chimeras weren’t able to make viable rat offspring, but the work could lead to a new method of preserving species on…
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12 Award-Winning Nature Photos to Remind You That Outside Exists
As a kid, I spent most of my time entranced by the natural world. There were the anthills I’d find on miniature backyard safaris and the newts I’d scoop up from the stream behind my elementary school. There were the fish at the aquarium, and the hours-upon-hours of Discovery Channel and Animal Planet content I…
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How Mammals Rose From the Doom of the Dinosaurs
Deep time is a headache. So many changes have happened in the cosmos, on our planet, and through evolution to create the world we know today. One of the most recent major changes, relatively speaking, was the K-Pg extinction, the mass death of the dinosaurs and many other creatures in the immediate aftermath of an…
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‘Extinct’ Giant Tortoise Was Just Chilling on an Island
A DNA analysis of a tortoise named Fernanda confirms she is closely related to an animal last spotted in the wild in 1906.