After all, our ancestors were healthier than we are, right? Enter the carnivore diet meal plan — which is pretty much what its name implies, lots of meat products and no carbohydrates.

Animals can be put into groups based on the types of food they eat. Some animals called carnivores only eat meat. Others are called ‘herbivores’. They only eat plants. Animals need to eat so ...

Because carnivores are at the top of the food chain, they promote an ecosystem's overall health. In areas where human activity has eliminated top predators, their former prey — like deer or elk — tend ...