Although carnivorous fish have long been important in aquatic ecosystems, one invasive and aggressive predator has been documented to survive outside its natural ...

WWF works to sustain the natural world for the benefit of people and wildlife, collaborating with partners from local to global levels in nearly 100 countries.

We are surrounded by non-native plants and animals from dandelions to snakeheads. But the lowly ... Smithsonian and first U.S. Commissioner of Fish and Fisheries Spencer Fullerton Baird.

Foxface and Rabbitfish are some of the most interesting additions to a saltwater tank. Technically, Foxfaces are a variety of ...

The stickleback is a small fish characterized by its conspicuous spines and unique reproductive behavior. Despite its small size, it is a fierce swimmer that scares off predators with its movable ...

Watch as a tiny pet snail uses a leaf to parasnail around its aquarium. While rarely seen, the activity is common for snails ...