A new study demonstrates the effectiveness of a novel method for using DNA in seawater samples to determine which fish species are present in a given part of the deep sea. A new study demonstrates the ...

Freshwater fish trematodes represent a diverse group of parasitic flatworms that pose important implications for both aquaculture and wild fish populations. Recent integrative studies combining ...

Why does a Caribbean angelfish sometimes resemble its Indo-Pacific cousin, even though they have never lived in the same ocean? Why do coral reefs harbor such a wide range of stripes, spots and ...

Many fish species evolved parts of their fins into sharp, spiny, needle-like elements -- called fin spines -- that function to protect the fish against predators. Such spines have evolved ...

A new WWF report is sounding the alarm on Africa’s freshwater fish: one in four fish species it assessed is at risk of extinction. These declines threaten not only biodiversity, but also the food ...

RENO, Nev.— In response to a petition and litigation from the Center for Biological Diversity, the U.S. Fish and Wildlife Service today proposed protecting the Fish Lake Valley tui chub under the ...