Knowtex

Game about river food chain

University researchers develop a "video game" to observe fish targeting their prey.

Scientists find a crucial key to consensus in the behavior of fish: a new study led by the ecologist Iain Couzin at Princeton.

Orange-dotted tuskfish digs a clam out of the sand and repeatedly throws the clam against a rock to crush it. Source: Univ. of California Santa Cruz Read mor...

3 questions à 3 personnes de l'Aquarium de Cabrillo (Los Angeles, Californie, USA).

Have you ever had a bad neighbor? The kind that blasts heavy metal at 3AM, “exercises” their dog on your lawn, and is just an all-around jerk? Well, bad as they were, chances are that you didn’t have to worry about them eating you. Our ancient, 375 million year old cousin Tiktaalik wasn’t as lucky.

Many species, including crows, chimps, and capuchin monkeys, are known to use tools, but a new paper in Coral Reefs by A. M. Brown et al. (paper free at link and highlighted in Science NOW) reports what may be the first documented case of a tool-using fish.

About 420 million years ago, fish evolved jaws. 99% of vertebrates still have them — including humans — but they may not be a very useful adaptation.

This blackspot tuskfish, found in Australia's Great Barrier Reef, held a clam in its mouth and smashed it against a rock to reach the food inside. This photo is the first incontrovertible proof that fish are capable of tool use.

Women who consumed the most baked or broiled fish were about 30 percent less likely to develop heart failure over a 10-year period.