This stiffens the shark’s spine and allows it to rapidly flip its tail, overcoming the resistance of the water. Shortfin mako sharks are considered the fastest sharks on the planet. They can swim at ...

If you’re looking to brighten your smile, using the right teeth whitening product is more affordable and convenient than going into the dentist’s office. Products for home use come in various ...

Universal Images Group via Getty Images A loose tooth that won’t heal for no apparent reason, especially if it’s paired with pain or swelling, could signal more than a standard dental issue.