8组最慢的动物世界

懒惰带婴儿
Sloths move at a pace of about 6 to 8 feet per minute.

凯文·谢弗/盖蒂图片社

有些动物只是不着急。从树懒蜗牛,乌龟到蛞蝓,这些都是一些世界上最慢的动物。虽然动物,如猎豹灰猎犬炫耀自己曼妙的速度,这些生物的内容缓行和蠕变,有时移动每分钟仅几英尺。

这些动物是如此缓慢,几个人的名字已经成为了闲置的代名词。满足一些自然界最懒散的小动物。

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三趾树懒

在树枝树懒行走
树懒有很长的手臂,但短期肩胛骨。

Juan Carlos Vindas / Getty Images

树懒花费在树梢的日子,几乎没有移动。要怪就怪他们自己的不得了昏睡低代谢率。That slow metabolism means they only need a few leaves and twigs for nutrition. They travel at a breakneck pace of 6 to 8 feet per minute,报道国家地理,移动缓慢,藻类生长在自己的衣服。

虽然懒惰的运动似乎类似于其他哺乳动物,德国动物学家发现,他们的解剖结构有很大不同。他们有very long arms, but very short shoulder blades。这给了他们一个大的范围没有太多的感动,使他们能够节省能源,同时使同样的动作为其他动物。

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Garden Snail

别墅休假蜗牛
花园蜗牛粘液的释放,以帮助他们移动。

NooMUboN / Getty Images

When you only have one foot, it’s difficult to move very quickly. The common garden snail has a flat, muscular organ that propels it extremely slowly along its purposeful path. To help it move, the snail releases a stream of mucus to reduce friction,reports the Dudley Zoo。这就是为什么你总能看到泥的线索在花园蜗牛的苏醒。一个花园蜗牛的最高速度是每秒1/2英寸(1.3厘米),但它可以为一英寸(0.28厘米)的1/10缓缓移动。

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海星

starfish sea star
微小的筒状脚帮助约每分钟一码海星之举。

Diana Robinson Photography / Getty Images

海星,通常被称为starfish,是很难与底部许多小波浪管脚顶部。这些小脚帮助海星把握表面和左右移动。但他们不移动速度非常快。按照美国国家海洋和大气管理局(NOAA),成人向日葵海星可以在每分钟一米(约场)的旋风速度使用的乐于助人的管足一万五千移动。

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巨龟

giant galapagos tortoise
The giant Galapagos tortoise can live for 150 years or more.

Paul Souders / Getty Images

有迹象表明,生活在各个岛屿巨龟许多亚种,但最有名的是巨大的加拉帕戈斯象龟。最大的活龟种,加拉帕戈斯能活150年以上。

Charles Darwin studied the tortoises when he was on the Galapagos in 1835. He thought they moved relatively quickly. “One large one, I found by pacing, walked at the rate of 60 yards in 10 minutes, or 360 in the hour,” he wrote inZoology Notes。“以这样的步伐,而动物会走四方英里的一天和有短暂的休息时间。”然而,斯蒂芬·布雷克,加拉帕戈斯龟生态运动项目协调员,tells the BBCthat their turtles move a maximum of two kilometers (1.2 miles) per hour, suggesting that "Darwin was probably chasing them."

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香蕉蛞蝓

香蕉蛞蝓木材爬行
Banana slugs secrete dry granules of mucus as they crawl.

艾德Reschke /盖蒂图片社

There’s not a lot of agreement about which animal is the absolute slowest. But University of Eastern Kentucky biologist Branley Allan Branson投票支持香蕉蛞蝓赢得最高荣誉。"A large banana slug has been observed to cover 6.5 inches in 120 minutes,” he wrote. “At that rate, a tortoise would seem fleet-footed."

香蕉蛞蝓沿着它们一个肌肉发达的脚推进自己移动。在该脚分泌干腺颗粒粘液,然后吸收周围的水变成煤泥。那防滑物质有助于润滑他们的道路,因为他们慢慢地爬行。香蕉蛞蝓也有粘液栓在其尾部末端它可用于生成煤泥的蹦极绳索从高处垂降下来。

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懒猴

slow loris on a branch
懒猴是缓慢的,直到它的猎物后。

弗雷德尔/盖蒂图片社

Are slow lorises really slow? For the most part, the loris is a lollygagger. The animal is mostly deliberate in its actions until it goes after prey. Then it strikes with lightning speed, it stands upright, grabbing a brand with its feet and throws its body forward to nab its prey with both hands,reports Cleveland Metroparks Zoo

这只小动物可能看起来非常可爱,可爱的,但懒猴是世界上唯一有毒的灵长类动物。毛茸茸的动物有toxins in its mouth从它的肘部一侧的腺体和释放毒素。他们散布在它们的皮毛有毒的组合,以阻止掠食者或之后他们只是去一个致命的一口。

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Sea Anemone

海葵
有些海葵很少分开后,他们已经锚定到岩石或礁石。

Yiming Chen / Getty Images

Related to coral and jellyfish, there are1000余个海葵物种around the world. These colorful and interesting underwater creatures use their lone foot — called a pedal disc — and mucus secretions to attach themselves to shells, plants, rocks, or coral reefs. They rarely detach, waiting for fish to get close enough for lunch. But when they do move, theirpace is about a centimeter (.04 inch) per hour。研究人员已经能够捕捉到它们的运动与延时拍摄。他们通常移动响应掠食者或不利条件。

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海牛

海牛在水中漂浮
海牛往往只是漂浮在浅水中。

布伦特杜兰德/盖蒂图片社

Compared to some of these other animals, the manatee is relatively speedy. But considering their heft and disdain for movement, manatees are usually very slow. The gentle giant of the ocean — also known as the sea cow — can reach up to 13 feet long and weigh as much as 3,500 pounds. With that much heft, it’s no wonder that manatees are rarely in a hurry. Manatees usually move at a speed of only a几英里每小时的。但是,如果他们真的需要的地方,他们可以复苏的步伐,以高达每小时20英里。

海牛通常留在浅水中。他们don't really have any true predators。Sharks or whales could eat them, but because they don't live in the same water, that rarely happens. Their biggest threat is from humans. But thanks to robust conservation efforts, the West Indian manatee in Florida was removed from the endangered species list in 2017.