A tiny fossil, Acronichthys maccognoi, rewrites fish evolution in North America and reveals how otophysans conquered freshwater habitats.

Hydrogels, which are soft materials formed by crosslinking polymers, could have a variety of medical applications. In research published in Advanced Science, investigators developed an injectable ...

(CNN) — US Customs and Border Protection officers in Arizona have seized 242 pounds of swim bladders – the organ that helps fish control their buoyancy – that came from the endangered Totoaba fish, ...

When saltwater fish long ago evolved to live in fresh water, many of them also evolved a more sophisticated hearing system, ...

The amazingly efficient lungs of birds and the swim bladders of fish have become the inspiration for a new filtering system to remove carbon dioxide from electric power station smokestacks before the ...

A fisherman removes a swim bladder from a giant Nile Perch at Nambo beach in Bondo, Siaya County. [Isaiah Gwengi/ Standard] It’s 11am at Nambo beach in Bondo, Siaya County. Three fishing boats have ...