Sharks are a few of Earth’s supreme survivorsThey are amongst the earliest animals in the world, preceding dinosaurs and trees and making it through numerous mass terminations. They’re likewise extremely varied, with more than 500 contemporary types swimming the world’s oceans, from little fish the size of your hand as much as 60 foot (18 meters) giants.

Sharks play a vital function in ocean communities, and they’re discovered in all of Earth’s oceans. Lots of types are now under risk from environment modification, overfishing, contamination and the shark fin trade.

Just how much do you learn about these amazing animals? Take our test to learn.

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