Predators of the bird likely included sharks and Squalodons.
A 220,000-gallon saltwater tank includes sharks, stingrays and other fish.
Other fish that can be caught include dorado, barracuda, tuna, and sharks.
The tank includes sharks and sea turtles which swim around visitors in all directions.
The contemporary vertebrate fauna included sharks, which left behind their teeth.
Predators may include great white sharks and killer whales.
The family Lamnidae also includes sharks such as the great white shark and porbeagle.
Potential predators of the night shark include larger sharks.
Predators on rough-toothed dolphins are thought to include killer whales and sharks.
The Niobrara's vertebrate life included sharks, which left behind fossil teeth.
