“We call it a ‘fish-eat-fish world,’ an ecosystem where you really needed to escape predation,” said Dr. Ted Daeschler, describing life in the Devonian period in what is now far-northern Canada.

Add Yahoo as a preferred source to see more of our stories on Google. A team of 20 paleontologists has announced the discovery of a new dinosaur species, Spinosaurus mirabilis, in a remote region of ...

Experts have uncovered the earliest known example of a fish with extra teeth deep inside its mouth—a 310-million-year-old fossilized ray-finned fish that evolved a unique way of devouring prey.

Predatory fish that evolved into the first terrestrial animals on Earth are still revealing insights into the origins of mammals—including new research into the eating habits of lobe-finned fish which ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Paleontologists ...

Researchers in Alberta uncovered a fossil fish that rewrites the evolutionary history of otophysans, which today dominate freshwater ecosystems. The new species, Acronichthys maccognoi, shows early ...

Life reconstruction of Platysomus, with open mouth showing toothplate on the floor of the mouth supported by gill bones. ANN ARBOR—A University of Michigan researcher helped identify the earliest ...

What do the ginkgo (a tree), the nautilus (a mollusc) and the coelacanth (a fish) all have in common? They don’t look alike, and they aren’t biologically related, but part of their evolutionary ...

Fossils over 300 million years old reveal the evolution of a tongue bite in an ancient group of deep-bodied ray-finned fishes, such as Platysomus parvulus. Experts have uncovered the earliest known ...