We all hear about Shark and some of the things we only know about them is that they are Dangerous and they live in the ocean. But they are more to that. Today I’m going to share with you ten fact about shark which you didn’t know before now. Not to waste much of your time let’s get started.
1. Not all shark species live in the ocean.
You can also see them in some freshwater lakes and rivers.
For instance, bull sharks swim in tropical rivers, but they also don’t mind dipping their fins in saltwater.
Rivers in the areas of New Guinea, Australia, and South Asia are home to river sharks.
Sharks are famous for their sense of smell,
but their acute hearing is also pretty impressive.
2. They can hear as far as 800 ft away.
They’re even able to catch the sound of their prey tensing its muscles.
3. Tiger sharks aren’t fussy eaters.
They’ll settle for pretty much anything that happens to be in the water, including barbie dolls, car license plates, tires, and rubber boots.
No wonder these sharks have the nickname “garbage can of the sea”.
4. The sharks’ skeleton isn’t made of bones.
It consists of only cartilage and muscle, which is much less dense than bones.
That’s why they’re such great swimmers, and can make sharp turns thanks to their flexibility.
5. They’re also older than dinosaurs
Scientists believe sharks have been around for about 450 million years.
Their ancestors were a group of fish called acanthodians, or “spiny sharks”.
They looked like small sharks, but had different fins.
For comparison, the first dinosaurs appeared more than 200 million years later.
6. Sharks have rows and rows of teeth, and can grow as many as 30,000 teeth in a lifetime.
Boy wouldn’t that keep the dental office busy.
They’d only need one patient!
Depending on the species, they can have up to 15 rows in each jaw.
At the front, they have the most powerful
teeth, and at the back they get smaller.
Since their teeth aren’t deeply rooted like
humans’, sharks often lose them, but grow
new ones right away.
In other words, their jaws are like conveyer
belts of teeth.
7. Sharks and humans have a common ancestor
Believe it or not, sharks and humans have
a common ancestor that lived around 440 million years ago.
Even though we both evolved in our own way, there are still some signs of that connection.
For example, the genome of an elephant shark is very similar to humans’.
8. Sharks don’t sleep.
They’re up all night watching Bright Side.
Many species …that was a joke…many species have to keep water moving over their gills to get oxygen.
So they can’t fall into a deep sleep like we do.
That’s why they stay half-awake during rest.
Typically, sharks don’t even close their eyes.
9. Goblin shark
There’s a rare species – the goblin shark – that’s so old it was nicknamed the “living
The Goblin shark has been around for more than 100 million years!
It has pink skin and an odd-looking flat snout. These animals usually live close to the ocean floor, deep underwater.
10. Sharks can navigate and hunt, even in complete darkness or murky waters
Sharks have a sixth sense, and they like Bruce Willis very much!
Actually no, but they can navigate and hunt, even in complete darkness or murky waters, thanks to special cells in their head that can detect electricity.
And all animals produce weak electric fields
because of the difference in the ion concentration between their bodies and seawater.
This ability to detect electricity makes them
the best electrical sensors on the planet.
I think the species to stay away from is the Loan Shark.
He’ll charge you outrageous interest rates, and threaten you with harm if you don’t pay it back in time.
Just use a bank instead.
Hey, if you learned something new today, share this article with a friend!
And here are some other cool article I think
you’ll enjoy. 8 Things Sharks Do For You Without You Knowing