A natural well filled with dark mysteries that was used as a Mayan human sacrificial pit that holds much wonder to all who ...

Some were the size of a dog. Others were as large as polar bears. A newly-discovered fossil of the ferocious hyaenodont is ...

“After being properly prepared, it became evident that (the new species was) part of a rare group of herbivorous/omnivorous ...

With sharp catlike teeth and a doglike body, ancient carnivores called hyaenodonts were once at the top of the food chain, ...