With DNA technology continuing to improve, scientists at the Field believe there are even more secrets inside the Tsavo lions ...

The name for animals that eat meat. Lions are an example of a carnivore. They hunt and eat other animals such as zebras, buffalos and antelopes. Animals that eat plants are called herbivores.

"As soon as that tooth died, it started to accumulate hair of things it was eating," he said. Researchers analyzed clumps of hair—of which they were thousands. They found the DNA of many species of ...