Peer into any fishbowl, and you’ll see that pet goldfish and guppies have nimble fins. With a few flicks of these appendages, aquarium swimmers can turn in circles, dive deep down or even bob to the ...

Many fish species evolved parts of their fins into sharp, spiny, needle-like elements -- called fin spines -- that function to protect the fish against predators. Such spines have evolved ...

It's no big news that hands and feet evolved from aquatic fins. But when you look at a modern fish, it's hard to imagine just how how fins like theirs evolved into the hands, wrists and fingers that ...

Segmented hinges in the long, thin bones of fish fins are critical to the incredible mechanical properties of fins, and this design could inspire improved underwater propulsion systems, new robotic ...

To escape predators beneath the waves, a flying fish can shoot out of the water and glide long distances because its paired pectoral and pelvic fins, longer and more rigid than those of other fish, ...

Why it's awesome: If you imagined a tiny fish with hands for fins, a moody downturned mouth and an extravagant mohawk, you might come close to visualizing the red handfish. This type of anglerfish ...

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 ...

Mike Nelson wants the first fish hitting the docks in Dulac, Louisiana when the tuna fleet returns to its home base there just south of Houma. He wants the freshest, and he knows the first fish off ...

Flying fish, for example, deploy their fins to glide above the water, while mudskippers use their fins like legs to walk on land. "We like to pick up where the biologists and zoologists have left off, ...

Peer into any fishbowl, and you’ll see that pet goldfish and guppies have nimble fins. With a few flicks of these appendages, aquarium swimmers can turn in circles, dive deep down or even bob to the ...