Newly discovered large predatory worms dominated the seas as Earth’s oldest carnivores, study finds
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advancements and more. Long before the first sharks appeared, large predatory worms were the “terror monsters” of the seas 500 million years ago, according to new research. Scientists have discovered fossils of previously unknown worm species during expeditions… Read More »