LifeDragonfish have 'invisible' teeth to help them sneak up on their prey Dragonfish live in the deep sea and have transparent teeth sharper than a piranha’s. A study has now found what makes their teeth see-through 51¶¯Âþ
HumansDid we split from Neanderthals 400,000 years earlier than we thought? An analysis of fossil teeth suggests that the shared ancestor of modern humans and our Neanderthal cousins may have lived more than 800,000 years ago 51¶¯Âþ