This is the only known instance of interspecies cooperative hunting among fish.

All species show a similar mating behaviour, which is also unusual among fish.

The intent of the regulations, he said, is to minimize mortality among fish that are released.

There can be no doubt, however, about the function of the second case of tool use among fish.

Herring is common among other fish as a part of the Estonian cold table.

There were a few minor letdowns among the meats and fish.

Among fish it has one of the longest known pregnancies, lasting approximately six months.

However, among fish of the same age, the males tend to be a little bit larger than the females.

Among many amphibians, reptiles and fish, temperature is a key to gender.