Peeing Elephant - Flickr

Planet Earth

Regardless of Bladder Size, All Mammals Pee for Approximately 21 Seconds (With Video Goodness)

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Blueprints for Mouse Burrows Coded in Their DNA

Porcupine-quill

Why Porcupine Quills Slide in with Ease But Come Out with Difficulty

Prettier tits (the bird!) get more help from their partners

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Ravens Appear to Communicate Using Gestures--A First for Non-Primates

Supergene Allows Butterflies to Copy the Wings of Their Toxic Neighbors

Small, Sneaky Squid Produce Big Sperm

Showy Male Birds—You Live Life Like a Candle in the Wind

Extroverted Elephants Change Their Best Friends Over Time

Studly Fish Aren't Born, They're Made---Sometimes Overnight

Fish Join the List of Tool-Using Animals (Probably)

Scent-Gland Bacteria Help Hyenas Identify Friends, Strangers, and Pregnant Females

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动物行为

无论膀胱大小，所有哺乳动物排尿时间大约为21秒（附视频）

老鼠洞穴的蓝图编码在其DNA中

为什么刺猬的刺容易插进去，却难以拔出来

更漂亮的鸟类（指鸟！）能从伴侣那里获得更多帮助

乌鸦似乎使用手势进行交流——这是非灵长类动物中的首次发现

超级基因使蝴蝶能够复制其有毒邻居的翅膀

小型、狡猾的鱿鱼产生大量的精子

炫耀的雄性鸟类——你的人生就像风中之烛

外向的大象会随着时间改变它们最好的朋友

长着突起物的鱼不是天生如此，有时一夜之间就会出现

鱼类加入了使用工具的动物行列（可能）

鬣狗通过气腺细菌识别朋友、陌生人和怀孕的雌性

保持好奇

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