Scientists in Japan have discovered Physalia mikazuki, a previously unknown species of Portuguese man-of-war, in northern waters for the first time. DNA and anatomical analysis confirmed it as ...

DNA shines a light back into the past, showing us things that fossils can't. But how far back can that light extend? Some of the oldest DNA sequences come from mastodon and polar bear fossils about 50 ...

Wadisuchus kassabi is both a new species and the first member of a new genus, or group of species that share physical similarities and an evolutionary line. The species was named after the valley ...