The blind side of a Remo flounder's head as it was being dissected Paulo Presti When ichthyologist Paulo Presti, a graduate student at the University of São Paulo in Brazil, found a jar containing a ...

The deep-sea fish ended up with glowing lures not just to snag meals, but also to attract mates, a new study finds.

While the sea robin has legs, it still doesn’t need a bicycle. By Sofia Quaglia The sea robin has fascinated scientists for decades. It has the body of a fish, the wings of a bird and the legs of a ...

A striking fish that lives at the bottom of the Atlantic Ocean has evolved legs – but not just for walking. These appendages are a novel sensory organ like a tongue, which they use to find prey buried ...

A new analysis of the bones and muscles in ancient fish gives new clues about how the shoulder evolved in animals – including us. The shoulder girdle – the configuration of bones and muscles that in ...

Quick Take A 436-million-year-old bony fish fossil has successfully helped researchers better understand vertebrate evolution. Before this discovery, the scarcity of Silurian fossil records created a ...

How did the complexity of many organisms living today evolve from the simpler body plans of their ancestors? This is a central question in biology. Take our hands, for example: Every time we type a ...