The Therizinosaurus Had Claws Three Feet Long and Scientists Spent Decades Arguing About What Kind of Animal It Even Was
Imagine finding a set of claws so long and thin they look more like swords than body parts, and then realizing you have almost no idea what sort of creature they belonged to. That is exactly the scientific headache Therizinosaurus caused. For a long time, this dinosaur was basically a set of terrifying fingernails and ...









