The X-fish, sometimes called the “bulldog fish” was an immense predator that swam the sea that covered western Kansas about 150 million years ago. Experts say the X-fish sometimes grew to more ...

The American Bulldog is a breed with a storied past, emblematic of the pioneering spirit. Initially bred for work on farms ...

Unlucky fish and unsuspecting seabirds were snared inside Xiphactinus's upturned jaw, which was lined with giant, fanglike teeth, giving it an expression akin to that of a bulldog. A 13-foot-long ...