This fish didn’t get the memo. While its fellow aquatic friends swim through the water, this creature’s evolved skeletal features that allow it to walk like a salamander, clambering over slick rocks ...

Add Yahoo as a preferred source to see more of our stories on Google. It's a fish that swims, but one that can also walk like a land animal and is built like no other fish on Earth. The blind, ...

New research shows that when two species of stickleback fish evolved and lost their pelvises and body armor, the changes were caused by different genes in each species. That surprised researchers, who ...

Discovery of a blind cavefish that walks on land sheds light on the evolution of tetrapods, scientists said. The small, one-of-a-kind fish found in Thailand may help experts understand better how life ...

Curtin University researchers have revealed how the pelvic fins of fish such as sharks and chimeras have evolved from their sudden appearance in the fossil record over 410 million years ago. The team ...

Reconstruction of Tiktaalik roseae. Credit: Thomas A. Stewart et al. / Penn State Even before fins evolved into legs, our ancient ancestors’ skeletons were changing in ways that would help them ...

The earliest vertebrate animals to walk on land were ancient four-limbed tetrapods that waggled their way across the ground like salamanders. Yet researchers still haven’t found many intermediate ...

Left: environment of the early tetrapod (Acanthostega) and tetrapodomorph fish (Eusthenopteron). Right: the axolotl and Australian lungfish. Catherine Boisvert But these weren’t present in the fish ...

For the first time, biologists have described the evolution of the size of a female trait which males use to choose a partner. The research shows that male cichlid fish prefer females with a larger ...

It's a fish that swims, but one that can also walk like a land animal and is built like no other fish on Earth. The blind, waterfall climbing cavefish Cryptotora thamicola is a distant relative of pet ...