Aquatic ecosystems are among the most biologically rich environments on Earth. From coastal seagrass meadows and estuaries to rivers, wetlands and springs, these systems support an extraordinary ...

"You cannot wait until an invasive species has demonstrated its impact upon the ecosystem. If you do, then it's too late." ...

The tiny Amazon molly (Poecilia formosa) has always fascinated researchers because, according to the rules of evolution, it shouldn't have survived as a species, let alone thrive as a species for over ...

LMU computational biologist helps uncover how the Amazon molly maintains a healthy genome without sexual reproduction ...

Scientists have uncovered new clues about some of Earth’s earliest fish, shedding light on the ancient origins of vertebrates ...

The Amazon molly reproduces without sex. A genomic copy-and-paste trick called gene conversion may explain how it avoids evolutionary meltdown.

Another giant reptile is clawing its way toward disrupting the South Florida ecosystem as an invasive species. The Nile monitor -- a semi-aquatic lizard equipped with razor claws that can grow up to 6 ...

Amazon mollies don't need a man, and never will. A new study finds they can purge and repair genetic mutations that would ...

The tripod fish doesn’t swim much. Instead, it stands on three elongated fins, conserving energy while currents deliver food.

A tiny, yellow-and-orange juvenile warty frogfish rests on a coral-like object in a habitat at Chicago's Shedd Aquarium. A tiny fish is making big waves at Shedd Aquarium as animal caretakers ...

Nanoplastics are disrupting fish's ability to think and make decisions, with troubling implications for ocean food webs.

Extremely rare conjoined twins have been found at a salmon hatchery in Ontario, an extremely rare phenomenon that occurs in very few births.