Showing posts with label teeth. Show all posts
Showing posts with label teeth. Show all posts

Friday, September 13, 2013

Sink Your Teeth Into This Shark Fact

 A shark's teeth are constantly replaced throughout it's life.

Picture from Mad Betty

 Multiple rows of replacement teeth grow in a groove on the inside of the jaw and steadily move forward.   Some sharks lose 30,000 or more teeth in their lifetime. The rate of tooth replacement varies from once every eight to ten days to several months. In most species, teeth are replaced one at a time as opposed to the simultaneous replacement of an entire row. 

Thursday, August 15, 2013

Crab's Teeth: Can You Find Them?

A crab’s teeth are found in it's stomach.

 Picture from Mike Delaney

Unlike human teeth, the teeth in a crab's stomach are not made of bone, but of a material called chitin, which is the same material that makes up most of a crab's shell.  These teeth are located in what are called "gastric mills" inside the stomach.
chamber called the gastric mill

Wednesday, June 19, 2013

A Ferret Has A Tooth For Everything

A ferret has four different types of teeth, all used for different things.

 Picture from Wikipedia

Twelve small teeth known as the incisors and are used for grooming.  Four canine teeth are used for killing prey.  Twelve premolar teeth are used by the ferret to tear and chew food.  And finally, six molars are used to crush food.

Friday, October 19, 2012

My, What Sharp Teeth You Have

Long, sharp fangs. Rows and rows of glistening teeth. You have to admit, it's the stuff horror movies are made up. It's also the stuff found in nature, as evidenced by these animals that all have scary teeth.

The gharial is a member of the crocodile family native to the southern region of Asia. Its long snout houses approximately 25 to 30 interlocking, razor-sharp upper and lower teeth on each side

The Goliath tigerfish can get up to a maximum size of 5 feet and 154 pounds. But its person-like size isn't the scariest part. That would be the large, dagger-like teeth in its mouth which can slice a catfish in half.

The hagfish use their scary-looking teeth to pull off hunks of flesh from larger fish. They not only feed on the outsides, but can also enter the inside of the fish and eat them from the inside - sometimes while the other fish is still alive!

Hyenas have powerful jaws; they use their teeth to catch their prey rather than their claws. Their teeth are sharp but also strong enough to crack and chew bones.

Those little nips your dog gives you doesn't seem so bad now, does it?