- to choose the best mates.
才能选出最佳配偶 - Birds had almost been wiped out with the rest of the dinosaurs.
鸟类几乎全都与其它恐龙一起灭绝 - Instead, thanks to their feathery talents,
然而由于羽毛的天赋 - they'd have a chance to rise.
它们有机会崛起 - But their path would not be easy.
但它们的道路不会平坦 - In the aftermath of the asteroid,
小行星撞击之后 - global temperatures plunged by a staggering 25 degrees.
全球气温骤降25度