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  • [crowd noises]

  • Is there any way to know what color

  • dinosaurs were?

  • Fossilized skeletons reveal the size and shape of dinosaurs,

  • But we've had a harder time

  • figuring out the features of soft tissue,

  • including skin colour.

  • Reonstructures of dinosaurs in museums, movies and paintings

  • often show dinosaurs in drab colors,

  • the kind they use in military fatigues.

  • Better for blending into the background.

  • This mutipality is certainly plausible.

  • After all, crocodiles and alligators,

  • the close cousins of dinosaurs,

  • are dressed in these drab hues.

  • But other evidence suggests

  • some dinosaurs might've been flashy.

  • Birds are descended from dinosaurs,

  • so it stands to reason,

  • that some dinosaurs might've be brightly colored,

  • just like birds are.

  • Rainbow hues may have helped dinosaurs attracts mates

  • or repel rivals

  • The same thing we see happened

  • in their winged descendants.

  • But scientists aren't limited to inferring dinosaur colors

  • only from their living relatives.

  • In recents years, they found structures called Melanosomes

  • in dinosaur fossils.

  • These structures contain pigments,

  • that give skin and feather its color.

  • By looking at Melanosomes,

  • researchers determined a small miditing dinosaur

  • called Sinosauropteryx,

  • had a tail bearing red and white stripes.

  • And the feather dinosaur,

  • Anchiomis Huxleyi,

  • apparently sported black and white plumage.

  • White stripes on its wings and leggs,

  • and a red crust on its head.

  • So far, scientists have only found pigments in a few dinosaurs fossils.

  • So for now, artists will have to rely on modern day animals

  • to guide their reconstructions.

  • But with new fossil finds

  • and better techniques for identifying ancient pigments,

  • It won't be long,

  • before dinosaurs show us,

  • their true colors.

  • For Scientific American's Instant Egghead.

  • I'm Eric Olson.

[crowd noises]

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恐竜は何色だった?- インスタントエッグヘッド #34 (What Color Were Dinosaurs? - Instant Egghead #34)

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    大菲鴨阿 に公開 2021 年 01 月 14 日
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