Polar fish experience lower mortality than tropical fish, allowing them to delay reproduction until later in life when they are larger and can produce more eggs, according to a study by Mariana ...

A new study by the Shedd Aquarium has found that the Chicago River system continues to recover from pollution, as evidenced by the fish species that have been spawning in the river system. A report on ...

Contrary to what is stated in biology textbooks, the growth of fish doesn’t slow down when and because they start spawning. In fact, their growth accelerates after they reproduce, according to a new ...

It is slimy, mysterious, and one of Europe’s most enigmatic species: the eel. For centuries, researchers have tried to discover where and how these fish reproduce, but to this day, no one knows for ...