Research suggests that contrary to popular belief, the T-rex did not have rows of exposed teeth — it had lips that covered those teeth. Some scientists disagree and insist that the T-rex is lipless.

Add Yahoo as a preferred source to see more of our stories on Google. American Bully dogs might look intimidating, but deep down, they’re total softies. TikToker @msjunglebullies shared a video ...

Ghost sharks have evolved rows of true teeth on a bizarre forehead rod used for mating. Fossil and genetic evidence revealed the tenaculum’s teeth develop the same way as those inside the mouth, ...

More like 20,000 screams under the sea. Footage of a bizarre, ocean-dwelling wolffish that has two sets of scary-looking teeth is making waves online. The clip of the deep sea denizen’s nightmarish ...