Sharks have been swimming in Earth’s oceans for hundreds of millions of years. They are powerful predators, but they are also incredibly diverse animals with unique senses, unusual bodies, and fascinating survival adaptations.
From enormous whale sharks to lightning-fast mako sharks, there are more than 500 known shark species, and they come in a surprising variety of shapes and sizes.
Here are some interesting facts about sharks that may change the way you see these remarkable ocean animals.
1. Sharks Are Older Than Dinosaurs
Sharks have an incredibly ancient history.
Shark-like ancestors existed more than 400 million years ago, long before dinosaurs appeared.
They survived several major extinction events and continued evolving into the diverse group of sharks we know today.
2. There Are Hundreds of Shark Species
Sharks are not just one type of animal.
There are more than 500 recognized species, ranging from tiny deep-sea sharks to enormous whale sharks.
They can live in tropical waters, polar regions, coastal environments, coral reefs, and the deep ocean.
3. Whale Sharks Are the Largest Sharks
The whale shark is the largest shark species and the largest fish alive today.
It can grow to around 12 meters (40 feet) or more.
Despite its enormous size, the whale shark is generally gentle and feeds mainly by filtering plankton and other tiny organisms from the water.
4. Sharks Have Incredible Teeth
Sharks are famous for their teeth, and for good reason.
Many species continuously replace lost or worn teeth throughout their lives.
Depending on the species, a shark may lose thousands of teeth over its lifetime.
New teeth move forward from rows behind the front teeth.
5. Great White Sharks Have Powerful Jaws
The great white shark is one of the ocean’s most famous predators.
It has powerful jaws and serrated teeth designed for cutting through prey.
Great whites can hunt fish, seals, sea lions, and other marine animals.