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

Lakes are essential to ecosystems, providing freshwater, supporting biodiversity and offering crucial habitat for fish and ...

Our Changing World heads to the Mackenzie region in the South Island to meet one of New Zealand’s rarest fish – the lowland longjaw galaxias. Dean Nelson, a senior biodiversity ranger at the ...

Perhaps most impressive is the Pacific sleeper shark (Somniosus pacificus), which has been documented at the astonishing depth of 9,000 meters in the Mariana Trench, making it one of the ...

While Minnesota is believed to have the most lakes, it isn't. Find out which state in the U.S. has the largest number of these natural wonders.

The Coelacanth was once thought to be extinct until a living specimen was discovered in 1938 off the coast of South Africa. This ancient fish has existed for over 400 million years and can grow up to ...