xkcd

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XKCD中文站,一个关于浪漫、隐喻、数字、以及语言的线上漫画。

Cougars

Cougars
If you're lying in bed tonight and you see yellow eyes glinting in your window, are you being stalked by a puma, a mountain lion, a panther, a catamount, or a cougar? Trick question--in North America, they're all names for the same species, Puma concolor! Isn't learning fun? Anyway, sleep tight!

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