Marine creatures like sharks existed in the Jurassic. Marine reptiles like icthyosaurs, plesiosaurs, and thalattosuchians also existed. Thalattosuchians are fully marine reptiles.
Yes, some species of sharks exhibit cannibalistic behavior where they may eat other sharks, especially during times of scarcity of food or territorial disputes. However, this behavior is not common among all shark species.
Answer: Ther are approximately 440 different species of sharks divided across eight distinct orders. Examples of common sharks are great white sharks, tiger sharks, whale-sharks, dogfish, angel sharks and many others.
Pacific Angelshark.Pacific Porbeagle (or just Porbeagle).Pacific Sharpnose.Pacific Sleeper.Paleocarcharias (an ancient shark that lived in the Jurassic era).
There are three species of sharks known to eat starfish. These sharks are the Nurse sharks, Horn sharks and Port Jackson sharks.
Some animals that are still alive today and lived during the Cretaceous period include crocodiles, turtles, and some species of sharks. These creatures have remained largely unchanged in their basic form for millions of years.
Sharks are fish, of the class chondrichthyes, subclass elasmobranchii and the Superorder selachimorpha. There are about 440 species of sharks.
the mothers eat the children, but this is not in every species of sharks
Sand sharks first appeared in the late Eocene epoch, which spanned from approximately 56 to 33.9 million years ago. Fossil evidence suggests that sand sharks were present during this time period and have continued to exist to the present day.
The remora.
thousands
No, thresher sharks aren't endangered.