(Telegraph) When scientists inadvertently killed what turned out to be the world’s oldest living creature, it was bad enough. Now, their mistake has been compounded after further research found it was even older – at 507 years. The ocean quahog – a type of deep-sea clam – was dredged alive from the bottom of the North Atlantic near Iceland in 2006 by researchers. They then put it in a freezer, as is normal practice, unaware of its age. Click here to read more.