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Richard Prum on dinosaur feathers

EarthSky

Richard Prum : Dinosaurs are all around us. They didn’t go extinct. In fact, they’re the most plentiful and diverse group of terrestrial vertebrates on the planet. They are the birds!

理查德?普魯姆：恐龍就在我們身邊，它們沒有滅絕。事實上，恐龍算是地球上陸棲脊椎動物中數(shù)量最多且最具多樣性一個子類?？铸埶闶区B類。

You are listening to Richard Prum, an evolutionary biologist at Yale University. Dr. Prum, an expert on the structure of feathers ，told EarthSky that feathers originated in dinosaurs.

您正收聽的是對耶魯大學(xué)進(jìn)化生物學(xué)家理查德?普魯姆的采訪。普魯姆博士是研究羽毛結(jié)構(gòu)的專家，他告訴EarthSky,羽毛起源于恐龍。

Richard Prum : In literally last 10 years, we’ve discovered that feathers evolved in dinosaurs before the origin of birds and before the origin of flight.

理查德?普魯姆：近十年，我們研究發(fā)現(xiàn)羽毛早在鳥類飛行起源之前就已經(jīng)在恐龍身上進(jìn)化。

In 2010, Prum became the first scientist to reconstruct in color the full plumage of a dinosaur. He based his work on the fossilized remains of a dinosaur called a troodontid, a small, meat-eating, flightless dinosaur. Dr. Prum found evidence of black, gray, white, and red feathers.

2010年，普魯姆成為復(fù)原恐龍全身羽毛顏色的首位科學(xué)家。通過對“中國鳥腳龍”（一種不會飛行的小型食肉恐龍）化石樣本的仔細(xì)分析，普魯姆證明了恐龍羽毛的顏色有黑色、褐色、白色及紅色幾種。

Richard Prum: We discovered the original pigment granules that had been in the feathers of the animal when it was alive, the kind of pigments that produce black hair and red hair and blond hair in humans.

理查德?普魯姆：我們發(fā)現(xiàn)恐龍活著的時候羽毛里含有色素粒，這種色素也決定我們?nèi)祟愵^發(fā)的顏色是黑色、紅色還是棕色。

Prum said this dinosaur had the kind of coloration you might find today on a particularly striking turkey or chicken. He added that, since these ancient feathers didn’t aid flight, they likely served for purposes of animal communication, mating, and warmth.

普魯姆說，說不定你現(xiàn)在看到的火雞或小雞羽毛上醒目的顏色也曾出現(xiàn)在恐龍的羽毛上。他補充道，遠(yuǎn)古時期的羽毛并不用于飛翔，而是起到與其他動物溝通、求偶及取暖的作用。

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