The genome of the coelacanth, an ancient-looking lobed-finned fish, has been sequenced and is already providing insight to the evolutionary changes that allowed the first four-limbed animals, called ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. ‘Lungfish’ would have been a common sight in the Devonian ...

Scientists uncovered a 310-million-year-old fish fossil with a “tongue bite,” teeth on the roof and floor of its mouth that worked like a second jaw. This adaptation, previously thought to have ...

At first glance, tube-eyes and cods seem nothing alike. The former, a ribbon-shaped, deep-sea fish, has bizarre tubular eyes that resemble goggles. The latter, one of the world’s most commercially ...

An ancient Elpistostege fish fossil found in Miguasha, Canada, has revealed new insights into how the human hand evolved from fish fins. Paleontologists have revealed the fish specimen has yielded the ...

Australian lungfish are known to be ultra-survivors, but this lungfish is pushing the boundaries even for its own kind. At over 90 years of age, Methuselah is one of the oldest fish in the world–and ...

The extinction of dinosaurs paved the way for ray-finned fish species, researchers claim. Pictured: an animatronic model of a Tyrannosaurus from the "Walking with Dinosaurs" show in Sydney, Jan. 10, ...

My dad was always good at pointing them out whenever we visited the beach, or a lake, or just passed by a stream on a hike. He’d look into the water and say, “Do you see it? The trout!” I would gaze ...