Study of shark teeth weapons uncovers two lost species

Two missing species of shark were discovered in a new analysis of weapons made from shark teeth and used by 19th century islanders.

Delhi: Over 2,400 shark teeth recovered from passenger

Over 2,400 shark teeth have been recovered from a passenger by Custom officials at the Indira Gandhi International airport.

Shark teeth have naturally built-in `toothpaste`

The dense, flat and crushing teeth of sharks contain fluoride keeping that is an active component of most toothpastes and dental care mouthwashes.