suggesting that it was probably used to open nests of insects

Livyatan melvillei would have occupied a different ecological niche due to its unique tooth structure and impressive size

such as regulating body temperature

are thought to represent a crucial link in the evolutionary chain of modern whales

in a harsh and arid environment

Arizonasaurus babbitti Edaphosaurus suggesting that it was probablyArizonasaurus babbitti : The sailboat hunter of the Middle Triassic Long before the great dinosaurs dominated the Earth, during the Middle Triassic, approximately 240 million years ago, surprising lineages emerged that would pave the way for the dominant reptiles of the Mesozoic. One of the most enigmatic and striking was Arizonasaurus babbitti , a large predatory archosaur whose silhouette was crowned by a tall dorsal sail, reminiscent of similar