(PhysOrg.com) -- History has shown that many invertebrates are able to regenerate lost limbs. Rare however, are animals with backbones that are able to do so, and when they do exist, they are usually ...

The deft wrigglings of fish forced to grow up on land could offer a glimpse of how ancient vertebrates started to make the big move out of the sea. The modern fish species called Senegal bichir ...

It was one of the key events in the evolution of animals – and now it has been replayed in the lab. Evolutionary biologists reared air-breathing fish on land for eight months and found that the ...

A Polypterus senegalus fish walks across a sandy substrate. The bichir fish use their fins and body together to move across land, but they’re better at it if they’re raised outside of water, a study ...