Unlike the living sperm whale, which has no functional teeth, the ancient Livyatan melvillei, with its 36 cm. teeth feeds on other whales and bigger predators.
Newly discovered fossils suggest human lineages diverged from gorilla ancestors two million years earlier than previously thought. After dating the remains, researchers say they indicate that apes, and therefore humans, originated in Africa, not Eurasia.
Using fossil teeth, researchers from Stony Brook University have found an ancient nectar-drinking bat was probably omnivorous.
A recent analysis of eight fossilized teeth revealed the true identity of a dinosaur species incorrectly classified years ago. It turns out that Dimetrodon borealis actually represents the first Canadian Dimetrodon, or terrestrial animal with steak knife-like teeth.
Hypercarnivores, or enormous predators, most likely shaped the ecosystem during the Pleistocene epoch. Essentially, packs of these large animals controlled populations of herbivores so to preserve the ancient landscapes and valuable vegetation.
Giant prehistoric teeth from an extinct species of shark known as Megalodon recently washed up on a beach in North Carolina. Since little is known about this ancient species, the newly discovered teeth may help researchers unlock more clues.