One of Alaska’s most abundant freshwater fish species is altering its breeding patterns in response to climate change, which could impact the ecology of northern lakes that already acutely feel the ...

Every summer, a symphony of grunts, croaks and roars echoes below the surface of the western Atlantic and the Gulf of Mexico to signal the launch of spotted seatrout spawning season. Last year, the ...

MARYLAND -- Maryland's effort to fight back against the spreading, invasive northern snakehead fish, now known as the Chesapeake Channa, could be facing a new challenge in the fish's breeding patterns ...

While a dominant male fish from northern Mexico mates with a female, a small fella bides his time in the offing. Suddenly, the little guy darts in ahead of Mr. Big and plants his seeds on freshly laid ...

Some animals reproduce only once before dying. This life strategy, called semelparity, sees organisms channel all energy into reproduction. Mechanisms include stress hormone overload, sexual ...