Different beak and jaw shapes are illustrative examples of how animal species have adapted to different food sources. In a new study published in the journal Nature, researchers now show how diet ...

We associate nests with shelter, warmth, and a safe retreat – and usually picture a bird's nest made out of twigs, grass and feathers. Yet many other animals take advantage of such refuges, with nests ...

Cichlids build nests from abandoned snail shells. A new study shows that while this behavior is instinctive, the fish become increasingly skilled at it with practice. We associate nests with shelter, ...

Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. Among those who cared about freshwater fish — and there were many — ...

A Case Western Reserve University scientist has played the lead role in identifying an invasive species related to one already threatening other fish in the waters of the southern United States. That ...

It all started with the Convict cichlids. The small striped fish, native of Central America, captured Sac State Biology Professor Ron Coleman’s attention in a laboratory at the University of Toronto ...

Cichlids are a striking type of freshwater fish with over 500 species. They're usually found in warmer regions and in various bodies of water, including ponds, rivers, lakes, and streams. Most species ...

Southwest Florida waters are home to some of the Amazon's most prized gamefish. If that sentence sounds a little strange, it should. Amazonian fish don't belong in our ponds, lakes and rivers, but ...

Cichlids are one of the largest and strangest groups of vertebrate fish — fish with backbones — on Earth. They’re popular as pets and farmed in aquaculture, and scientists have been studying them ...

LEANDER, Texas — Officials are warning anglers about a beautiful exotic fish recently caught in Central Texas. The aulonocara species of fish, better known as Peacock Cichlids, are native to Lake ...

Newfound evidence reveals that the upsurge of the exotic Nile perch in Lake Victoria had long-lasting effects on the genetic diversity of various local cichlid species, report scientists from Tokyo ...