Park rangers in Chester County, Pennsylvania, found an invasive snakehead fish in the Schuylkill River this week.

Binh’s spiny frog, or Quasipaa binhi, was discovered in the forests of central Vietnam. Known for its robust body and heart-shaped tongue, this frog was found near forest streams. The species was ...

It’s crayfish season in Louisiana, but the Pacific Northwest is receiving all the crayfish spotlight. Researchers recently ...

Researchers have found that chunks of "flipped" DNA can help fish quickly adapt to new habitats and evolve into new species, ...

Reef "beauty salons" staffed by tiny cleaner fish aren t just for parasite removal they may also shape the microbial life of ...

The first new species, Peltospira gargantua, was found on a black smoker chimney in the Hydra field at a depth of about 12,300 feet, researchers said.

Where do you go when you’re a fish and you need a skincare treatment? Coral reefs contain natural “beauty salons,” lively ...

The remote isle of Cosmoledo was a wreck, until a South African adventurer rebuilt it as a model of marine conservation ...

Mosquitofish have a mixed reputation because they’re an invasive species in many parts of the world. However, this isn’t ...

Pacific spiny lumpsuckers are wee, coastal fish that look a bit like concerned strawberries, have a fluorescent glow and pack ...