Animals & Nature

Shark Species Deep Dive Quiz

500+ shark species — how many can you identify by size, behavior, and habitat?

About This Quiz

The Greenland shark can live for over 400 years, making it the longest-lived vertebrate ever documented — and scientists only confirmed this in 2016. With more than 500 known species spanning eight orders and over 30 families, sharks are among the most diverse and ancient predators on Earth. This 50-question quiz dives deep into shark taxonomy, anatomy, behavior, and conservation.

Frequently Asked Questions

How many shark species exist?

Scientists have identified between 500 and 540 shark species, grouped into 8 orders and more than 30 families. New species are still being discovered, particularly in deep-sea environments. Sharks range from the 15-centimeter spined pygmy shark to the 12-meter whale shark.

What is the largest shark?

The whale shark (Rhincodon typus) is the largest living shark — and the largest fish of any kind — reaching lengths of 12 to 14 meters (40-46 feet). Despite its enormous size, it is a gentle filter feeder that eats plankton and small fish.

Can sharks live in fresh water?

Yes. The bull shark (Carcharhinus leucas) is uniquely adapted to tolerate both saltwater and freshwater. Bull sharks have been found hundreds of miles up rivers, including the Mississippi, the Amazon, and the Ganges. They achieve this through special osmoregulation in their kidneys and rectal glands.