WASHINGTON (Reuters) - Primitive fish already may have possessed the genetic wiring needed to grow hands and feet well before the appearance of the first animals with limbs roughly 365 million years ...

Around 380 million years ago, in the shallow seas of the Devonian Period, this fish was swimming around minding its own ...

Losing your baby teeth is a strange experience. The teeth gradually loosen until they're replaced by thicker, more durable ...

The greatest threat the fish now face is the dams, which will probably lead to their demise, said Aaron Jackson, who heads the Confederated Tribes of the Umatilla Reservation efforts to restore ...

For 150 million years, gars—a group commonly derided as “trash fish”—have mostly stayed the same, a rare consistency not even seen in sharks, a new study says. A longnose gar swims through Florida's ...

Fish are doubtlessly feeling about now whatever fish feel when the urge to spawn kicks in. In but a little while – if not today or yesterday – female and male will be heeding an ancient directive by ...

In order for life to emerge both peptides and nucleic acids must have appeared under “prebiotic” conditions. Despite numerous efforts, the formation of these macromolecules without the help of modern ...