Left-Handed Snails Are Impossible for Crabs to Eat.

Gregory Dietl of Yale University and colleagues found that snails with left-handed cones are impossible for predators to eat.

They found the crab is unable to open left-handed shells because it only has a tool for peeling them on its right claw; so it discards them.

"The crabs have a special tool on their claw, a tooth that's used like a can-opener," said Gregory Dietl from Yale University.

"So, if you imagine trying to use a right-handed can-opener with your left hand - it's very hard to do," he told the BBC News website.

Despite this evolutionary advantage, however, left-handed forms remain rare.


Newest 3
Newest 3 Comments

Login to comment.

Email This Post to a Friend
"Left-Handed Snails Are Impossible for Crabs to Eat."

Separate multiple emails with a comma. Limit 5.


Success! Your email has been sent!

close window

This website uses cookies.

This website uses cookies to improve user experience. By using this website you consent to all cookies in accordance with our Privacy Policy.

I agree
Learn More