Around 25 million years ago, an evolutionary split occurred between our ancestors, the precursors of humans and apes, and ...

From mackerel to monkeys, practically everyone has a tail...except humans and other apes. The reason we’re left out is because most mammals use their tails to balance while walking or running. But we ...

After an injury, some flatworms can regrow almost every cell in their bodies, axolotls can rebuild entire limbs and parts of their brain, zebrafish can mend broken spinal cords and green anole lizards ...

Lemurs, lizards, whales — all are famed for their tails in some way. But which animal has the longest tail of all? In proportion to their bodies, grass lizards have the longest tails of any known ...