In spawning, female fish lay eggs while the male fish fertilizes them with milt, or sperm. At the hatchery, staff members net the fish that are ready to spawn and place them into a tub of anesthetic, ...

We’ve all heard the phrase, “a fish out of water,” but these fish take it literally. As you can see in this YouTube video, splash tetras lay their eggs on a leaf overhanging the water. Only 1% of the ...

There are a number of factors that could explain why an eagle’s eggs may never hatch, including weather, lack of food and the age of the parents. The world is watching bald eagle parents, Jackie and ...

A sign for trout stream fishing on the Turkey River sits behind a trout pond at Big Spring Fish Hatchery in Elkader on May 28. The river is open to the public for fishing and has an angler access ...

The East Bay Municipal Utility District (EBMUD) reports more than 10,500 Chinook salmon returned to the Mokelumne River from ...

Researchers have uncovered a previously unknown yet crucial role for thyrotropin-releasing hormone (Trh) in zebrafish hatching and reveal how this hormone activates a transient neuroendocrine circuit ...