LifeAncient shark used its teeth like the blade of a power tool The extinct shark Edestus used its teeth like saw blades, sliding them past each other like a power tool to slice through the soft flesh of its prey News
LifeEarly whales swam doggy paddle across the ocean from India to Africa Rare fossils of early whales show they may have swam doggy paddle style. It may not have been elegant, but they still managed to spread across vast oceans News