Salmon are spawning earlier in Issaquah Creek, Washington, despite warming waters. This shift suggests hatchery breeding ...

Microplastic pollution is not only a question of how much plastic is in the ocean, but also when fish meet it. A global analysis now suggests that reproductive seasons can turn familiar contamination ...

It’s not easy to catch bonefish. Wary of humans, these silvery fish—nicknamed grey ghosts—blend into the sandy flats where they forage and are quick to dart away. Several species of the fish are found ...

Each spring, an immense breeding migration culminates in the northernmost portions of the Gulf of California at a reserve near the Colorado River delta. Synchronized with the tides two to five days ...

A group of animal biologists and chemists at the Institute of Transformative Bio-Molecules (ITbM) at Nagoya University in central Japan, in collaboration with Toyota Boshoku Corporation and Niigata ...

Atlantic bluefin tuna circle a holding pen near Malta. The Mediterranean Sea and the Gulf of Mexico were long thought to be the only locales where the massively valuable fish spawns. Alex Mustard / ...