Genetics

frog on clay pot

Behold, the ancient ones

Frogs date back more than 150 million years in the fossil record, and for centuries, the amphibians have been idolized and used in various ways by different cultures. Frog toxins are remarkably potent in the human body and may be used to treat hea...

Extinct tortoise yields oldest tropical DNA

The well-preserved skull of an extinct tortoise species. Florida Museum of Natural History photo courtesy of Nancy Albury An extinct tortoise species that a...