Octopuses hunt by 'tasting' with their suckers
Nature Podcast
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The T-Rex's Lips
It's been a debate for a long time whether or not the T-Rex had lips. Lips are actually quite useful for protecting your teeth, and especially if you have big teeth. But we don't have any good fossils that would tell us straight off what they looked like. So some researchers have been looking at schools of related species to try and find out more about them. The Komodo dragon does have lips - but they just cover their teeth.
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