A team of scientists in Portugal say they discovered the heaviest bony fish in the world in the Azores archipelago in the Atlantic Ocean. The giant sunfish, weighing a little more than 3 tons, was ...

About 350 million years ago, your evolutionary ancestors—and the ancestors of all modern vertebrates—were merely soft-bodied animals living in the oceans. In order to survive and evolve to become what ...

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

When you think about human evolution, there’s a good chance you’re imagining chimpanzees exploring ancient forests or early humans daubing woolly mammoths on to cave walls. But we humans, along with ...

If you liked this story, share it with other people. Bony fish, or teleosts, represent some 96% of the world’s marine fish species. The IUCN Red List of Threatened Species, the global reference for ...

What do we have in common with fish, besides being vertebrates? The types of joints we (and most vertebrates) share most likely originated from the same common ancestor. But it’s not a feature that we ...

A giant sunfish believed to be the world’s heaviest bony fish has been discovered in the Azores archipelago, Portugal, weighing a whopping 2,744 kilograms (3 tons). Researchers said the animal was ...