Limpet teeth set new strength record
Look at these powerful teeth.
They belong to a limpet - a marine mollusc with a conical shell that clings tightly to rocks with it's muscle.
Now engineers say the teeth - which are less than a millimetre long - are made of the strongest biological material ever tested.
They say they have the same strength as one string of spaghetti holding up 3,000 half-kilogram bags of sugar.
Limpets have a tongue covered in these tiny teeth that can scrape food off rocks and into their mouths.
The teeth are made from minerals and proteins.
When they were tested in a lab, engineers found they were five times stronger than silk spun by spiders.
Watch Hayley's report to find out more.