13個你可能不知道的真相 看似平常其實不然

You spend about 23 years sleeping in a 70 year life.
在70年的生命中，你大約要花23年的時間睡覺。

Owls are the only birds that can see the colour blue.
貓頭鷹是唯一能看見藍色的鳥類。

Your stomach has to produce a new layer of mucus every two weeks otherwise it will digest itself.
爲了防止把自己消化掉，你的胃不得不每隔兩週就造出一層新的粘膜。

People will say “Bless you” when you sneeze because your heart stops for a millisecond.
當你打噴嚏時，人們會說“上帝保佑你”，那是因爲你的心臟停跳了一毫秒。

All polar bears are left-handed.
所有的北極熊都是左撇子。

A cat has 32 muscles in each ear.
貓的每隻耳朵上有32塊肌肉。

Pigs can become alcoholic.　
豬有變成酒鬼的能力。
　　
Bats use ultrasound to pick up vibrations from their prey.
蝙蝠用超聲波識別獵物發出的震動。

Butterflies taste with their feet.
蝴蝶用腳品嚐味道。

An average head has between 100,000-150,000 hairs.
人們頭上通常有10萬到15萬根頭髮。

In our solar system, the earth is the lucky planet that has the right temperature to recycle water.
在太陽系中地球是個幸運的星球，因爲它有適宜的溫度可以使水再循環。

Nails grow at 3mm per month.
指甲每個月會長3毫米。

Hair on your head grows at 10-13mm per month.
你的頭髮每個月會長10至13毫米。