Fish

A coalition of public and private entities hopes to revive both fish and water supplies in a hotter, drier climate.

The tiny fish doesn’t reproduce well in years when the water doesn’t flow. Several bad years in a row could push the species closer to extinction.

Atlantic salmon from Norway carry a dangerous disease that puts native Canadian fish at risk — and maybe those in the United States, too.

Chemicals collect in microplastics, which then get eaten by fish, birds and seals — and by humans.

We mapped out where the drilling could take place — and how it overlaps with the critical habitats of the most sensitive species at risk.

Drawing clear borders around the Arctic Ocean matters for the future of the people who live there — and for the planet as a whole.

The disappearance of a tiny oceanic parasite, researchers warn, indicates that overfishing has caused an ecosystem to fall out of balance.

Wolves and polar bears are great, but so are bats, fish, plants and invertebrates (among others worthy of our attention).

Southern Resident killer whales have a shortage of food and an overdose of deadly pollutants.

Manmade “dam analogues” could help beavers recolonize former habitats — and help fish in the process.