For more than a decade, paleontologists have speculated about a single fossil that preserves skeletons of two of the world’s most famous dinosaurs, Tyrannosaurus rex and Triceratops. Not only ...

The gulper eel’s large mouth allows it to engulf prey whole, including fish and invertebrates, adapting well to the scarcity of food in the deep ocean. Photograph By Norbert Wu/Minden Pictures ...