In a river of western Brazil, an “armored” creature with bumpy lips swam through the “dark tea-colored” waters. Something about it caught the attention of nearby scientists — and for good reason. It ...

Macroinvertebrates include snails and larvae of dragonflies, caddisflies, mayflies and stoneflies, among others. They can be ...

Biological crisis threatens food security and livelihoods of more than 85 million people across East Africa ...

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.

Tetras are one of the most popular and diverse types of freshwater aquarium fish. With more than 150 unique types of tetra ...

Whether you’re an experienced aquarium keeper or a total novice, one of the first decisions about any freshwater setup will be about the types of aquarium fish you select. Thankfully, this list will ...

An estimated 26 per cent of Africa’s freshwater fish species are threatened (including those assessed as Critically ...

Museum ichthyologist Cristhian Conde-Saldaña uses evolutionary genetics to study freshwater fishes and document at-risk ...

The Shedd Aquarium's Karen Murchie expects her sucker research into longnose suckers to expand knowledge on a prime prey fish ...

Ateneo biologists have confirmed the presence of the invasive tinfoil barb (Barbonymus schwanefeldii) in Laguna de Bay, ...

A striking, silver-colored fish commonly kept as an aquarium pet has been hiding in plain sight in the Philippines' largest ...

A striking, silver-colored fish commonly kept as an aquarium pet has been hiding in plain sight in the Philippines’ largest ...