萬千世界，無奇不有特別是在動物界。今天小編就帶大家了解一些動物界不為人知的冷知識，保證讓你大開眼界，一起來看看吧。

1. If a snail doesn't like the weather, it can hide in its shellfor up to three years.

　　如果蝸牛不喜歡某種天氣，它可以“窩”在殼中長達三年。

2. Owls have three eyelids on each eye: one for blinking, one forsleeping, and one for cleansing.

　　貓頭鷹有三層眼瞼(眼皮)：一個用來眨眼、一個睡覺、一個清潔。

3. When the female in a group of clownfish dies, the most dominantmale turns into a female to replace her.

　　當一群小丑魚中的雌魚死亡，最重要的雄魚會變成雌性替代它。

4. Koalas sleep for 22 hours a day.

　　考拉一天能睡22小時。

5. Swifts spend most of their lives in the air, and can fly aslong as 10 months without stopping.

　　雨燕大部分時間都生活在空中，且可以長達10個月一直飛行。

6. Hummingbirds flap their wings as many as 200 times per second,which uses so much energy that they need to eat up to eight times their bodyweight every day.

　　蜂鳥每秒可以拍動翅膀200次，每天耗費的能量需要它們吃相當于體重八倍的食物。

7. If a tarantula loses a leg, it can just grow a new one.

　　如果狼蛛斷了一條腿，很快會長出新的。

8. Wood frogs can freeze completely during winter, and then thawin the spring.

　　林蛙在過冬時會凍成冰塊，春天會再融化。

9. Badgers can dig underground dens that have up to 50 exits andare able host multiple badger families.

　　獾可以挖有50個出口的洞穴，且能容納多個獾的大家庭。

10. Sloths climb down to the ground only once a week — to poop.

　　樹懶能一周就“下地”一次，還只是為了排便。

11. Even if you cut off a cockroach's head, it can still live fordays.

　　即使你切掉蟑螂的頭，它也能活好幾天。(厲害了，小強哥!)

12. Octopuses can use their arms to taste and smell.

　　章魚的腕足具備味覺和嗅覺。

13. Not only can turtles live to be more than 150 years old, butthey can also feel through their shells.

　　烏龜不僅能活150多歲，而且它們的殼也有觸感。

14. Anteaters don't have teeth, but their tongues are extremelysticky and can grow up to two feet long.

　　食蟻獸沒有牙齒，但它們的舌頭極具粘性，且可長達兩英尺。(1英尺≈0.3米)

15. And giraffes' tongues are so long they can lick their ownears.

　　長頸鹿的舌頭很長，甚至能舔到自己的耳朵。

16. Crocodiles can survive for three years without food.

　　鱷魚不進食能存活3年。

17. Tapirs love swimming, and use their flexible noses as snorkelsin the water.

　　貘喜歡游泳，它們用靈活的鼻子潛水。

18. Everyone knows chameleons change color, but they can also movetheir eyes separately and look in two directions at the same time.

　　變色龍可以變換顏色，它們的兩眼可獨立地轉動、甚至能同時看不同的方向。

19. Speaking of changing color, wild turkeys' heads change betweenred, white, and blue depending on their mood.

　　談到變色，野生火雞的頭可隨著其心情在紅色、白色和藍色之間變化。

20. Flamingos pee on their own legs to cool off.

　　火烈鳥在自己的腿上排尿降溫。

21. Sharks grow new teeth constantly — up to 30,000 in a lifetime.

　　鯊魚會不斷地長出新牙，一生約30000顆。

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