Researchers said they named the new species after Ivo Silva dos Santos, a “technical assistant in the Ichthyology Laboratory ...

A remotely operated submersible saw the “semi-gelatinous” animal lying on the ocean floor and “flying underwater.” Take a look.

Birch Aquarium visitors can see the 11-foot oarfish that was found near Leucadia last November. The new limited-time, ...

When we talk about prehistoric life, dinosaurs usually get all the attention. But the truth is, long before they came along, ...

The first dorsal fin, however, lacks such a lobe ... this thick-walled tube filled with oil serves as a kind of backbone. In most creatures with backbones, vertebrae replace the notochord in ...

A 4-year-old girl in India noticed a “translucent” creature in a water tank and helped ... such as more prominent eyes and fins, the study said. Researchers suspect it “might still be ...

A rounded tail, like that of the angelfish, enables quick bursts of speed to escape predators. Fins: Help a fish move. The top fins are called dorsal fins. If there are two dorsal fins ...

Frogfish are some of the most colorful creatures under the sea — and some of the most unique, too. They look more like frogs than fish with their leg-like fins and their quick-snapping jaws ...

A group got the chance to see the largest sea creature on the planet ... see the telltale hump on the leading edge of the dorsal fin” and got the chance to see the whales’ flukes come out ...

These fins are believed to be a link to early vertebrates, creatures that took the first steps onto land millions of years ago. Instead of just swimming, these fins help the fish move in a walking ...

A long red dorsal fin crest extends from the top of the head ... fosters a deeper appreciation for them—not as mythical creatures, but as remarkable living beings that share our world.” ...