Scientists found 18 million-year-old teeth in Cuba, and later a 29-million-year-old tooth in Puerto Rico. The post Giant ...

Imagine a crocodile built like a greyhound—that's a sebecid. Standing tall, with some species reaching 20 feet in length, ...

Researchers uncovered one vertebra, and based on its size, they estimate the massive creature was at least 30 feet long when ...