- Not for flight but for warmth.
不是用于飞行 而是为了保暖 - Being able to stay warm
能够保持温暖 - means this branch of dinosaurs, the theropods,
意味着恐龙的这个分支兽脚 - can be active day and night...
可以在白天和夜间活动 - giving them more time to raise their young as part of a family.
这让它们有更多时间 来照顾作为家庭成员的幼崽 - Living in a group has other advantages too,
一起生活还有其它优势 - especially when it's time to find food.
尤其是在寻找食物时
can be active day and night... 可以在白天和夜间活动
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