“A 2013 study estimated that humans kill about 100 million sharks each year, many for their fins, which has pushed many species toward extinction.”

Reference: Worm et al., Marine Policy (2013)

More animal facts

The harmless whale shark holds the title of largest fish, with the record being a 59 footer captured in Thailand in 1919.

Sharks apparently are the only animals that never get sick. As far as is known, they are immune to every known disease including cancer.

No two tigers have the same stripe pattern, so researchers can identify individual wild tigers from camera trap photos almost like fingerprints.