Tens of million years ago, sand tiger sharks hunted in the waters off the Antarctic Peninsula, gliding over a thriving marine ecosystem on the seafloor below. All that remains of them today is their ...

A prehistoric jet black river creature with shark-like teeth has been caught in the Choctawhatchee River in Florida. The melanistic longnose gar was found by the Fish and Wildlife Research Institute ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

In the history of teeth, perhaps no tooth is as famous as the saber tooth. These long, blade-like canines seem almost perfectly optimized to kill prey. They've evolved at least five times in mammals, ...

Why do ants and other small creatures have such sharp bites? According to scientists from the University of Oregon and the Pacific Northwest National Laboratory (PNNL), the answer lies in their ...

Teeth help animals bite and chew food. Meat-eating carnivores tend to have sharp teeth to sink into their prey, while herbivores tend to have flatter teeth to grind down their plant-based meals. Some ...