I took her human nose hair because that's the way you isolate these things. You have a needle tipped with the human nose hair. It's apparently has just rights bringing us for the isolation whose nose hair was it as yet I I don't actually know That was a joke going around this one as the professors, but the rebel, No. So using someone's knows air. Then L I picked through the sluggish, sediment and isolated the tiny scales of moth wings. That's the stuff that looks like dust. If he touch of butterfly or moth, his team scanned the scales with an electron microscope and they made a crucial discovery. Some of the scales were hollow the fossil record shows that first game, the pro-Moscow his Then came to Hollow scales we can than in for if we find the Hulo skills, There must already have been a probe Oscars. So what's the big deal while the finding means that these samples predate existing evidence for the first butterfly tongues by seventy million years, which in turn implies that an early version of the pro-Moscow this which in modern insects can pry into a flowers nooks and crannies for nectar appears to have evolved before the appearance of flowers. Not as a response. And thus studies in the journal Science Advances nearly per Bosca's might have been used to pluck drops of liquid from the tips of ancient forms of today's pine tree cones. And it's clear that these sucking Tung's underwent a lot of Remodeling after the emergence of flowers to as. Flowers in Moscow evolved, But Vin all Dyke is hoping insect scales might become more widely used as a tool to investigate the ancient world. We're hoping that people will start recognising them in other places. You can even imagine sort of a scenario in which we can reconstruct Bass ecosystems based on the scales that you find in a core much cemented way. We do it with Bala now All scientists have to do is follow their noses, or at least there does hairs. Thanks for listening for scientific American sixty seconds. Science. I'm Christopher and done. Yep.