Celebrate Shark Week with these fun shark facts!
Not only did sharks first appear 400 million yeas ago, they are still here today. They have survived 5 massive planet extinction events.
While many of us have learned to fear sharks, they’re the ones who should fear us. People are sharks’ most deadliest predator. In fact humans kill more than 100 million sharks each year.
Most sharks species will drown if they stop moving. Great white, mako and salmon sharks don’t have the muscles they need to pump water through their mouth and over their gills. As long as they keep swimming, water keeps moving over their gills, keeping them alive.
Humans are the shark’s biggest predator, but killer whales, crocodiles and seals have been known to eat sharks as well. Large sharks will even go after smaller, younger sharks that might make easy prey.
Even though sharks have rows and rows of razor-sharp teeth, they don’t use their pearly whites to chew their prey. Shark teeth are strictly for snapping, grip, crush or rip, and the resulting chunks are swallowed whole.
Galeophobia is the excessive fear of sharks. It comes from the Greek word “galeos,” which was a particular type of shark.
Be glad you’re not a shark, moms! The gestation period for a pregnant female shark can range anywhere from five months to two years.
Sharks’ eyes are on the sides of their heads, so they have an amazingly wide sightline spanning nearly 360 degrees. Their panoramic view of the undersea world is inhibited only by two blind spots, one in front of the snout and the other directly behind the head.
Instead of closing its eyelids, a great white shark rolls its eyes into the back of its head when it attacks. This behavior helps the shark protect its eyes from debris and the thrashing of its prey.
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