FACT

Sharks evolved around 400 million years ago, while trees appeared about 350 million years ago.

Source: Shark Evolution Timeline - Smithsonian Ocean

MYTH

Of over 500 shark species, only about 10 are considered dangerous to humans. Most sharks are harmless.

Source: Shark Species and Human Risk - NOAA Fisheries

MYTH

While rare, sharks can and do get cancer. This misconception led to harmful cartilage supplement marketing.

Source: Do Sharks Get Cancer? - Journal of Cancer Research

MYTH

While reported attacks may increase due to better reporting and more people in the water, actual attack rates remain very low.

Source: Shark Attack Trends - International Shark Attack File

FACT

Sharks have special organs called ampullae of Lorenzini that can detect the electrical fields of other animals.

Source: Shark Magnetic Navigation - Current Biology