Researchers in New Zealand have made what they believe is the first recording of a shark actively making noise.

Swim bladder disease is a very common health condition that affects many types of fish. In short, it makes it difficult for ...

For 162 million years, sturgeons have fended off everything they’ve faced. Now scientists are racing to save these living ...

The blobfish, known for its unattractive appearance, has been declared New Zealand's Fish of the Year, altering public ...

Aside from having skin in lieu of scales, there are some other differences. Most bony fish have gas bladders, which are simply gas-filled organs, to help keep them buoyant. Blobfish, like sharks ...

It also lacks muscles and a swim bladder, which other fish have to help maintain buoyancy. Without a swim bladder, other fish tend to lose control and sink or rise uncontrollably in the water.

Twenty-five totoaba were caught before law enforcement were able to remove the nets, according to the Mexican government. The ...

Listen to the sharks crackle: More than 1,000 fish species are known to produce sounds, usually by vibrating their swim bladder, a gas-filled organ that helps the animals stay buoyant and can also ...

Researchers believe the sounds are made by the sharks snapping their flattened teeth together, possibly as a stress or warning signal. This discovery challenges the long-held belief that sharks ...

The researchers noticed that whenever a shark was held, it would start clicking – possibly, Nieder said, the sound of the ...