Quick Take Polar bears are showing rapid DNA changes in response to warming climates, a rare adaptation that may help survival but does not guarantee it. New DNA may broaden the polar bear’s diet to ...

A team of scientists sequenced the most ancient DNA yet, found in permafrost in the northernmost reaches of Greenland. The DNA is 2 million years old, blowing past the previous record for the most ...

What makes every person unique? Part of the answer is in our genes. A gene is a basic unit of heredity, the means by which traits get passed from one generation to the next, and genetics is the study ...

Discover interesting facts about how traits are passed down over generations through DNA. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. What ...