大猩猩为什么会倒立

如果你在海洋中看到这一幕，千万不要乱动，这一个个悬锤在半空的，不是定海神针，也不是你家的腊肉，而是抹香精在睡觉。如此惊悚的睡觉姿势，抹香精难道不怕往下沉吗？抹香精是世界上最大的齿精，最长等达到十八米，体重超过五十吨。 和我们人类一样，抹香精也需要睡觉。他们睡觉时就像一个巨大的浮木，头部向上树立在海水中，一动不动，偶尔还会打呼噜。一群抹香精集体睡觉， 这样的场面可以说非常罕见。抹香精之所以竖着睡觉，有科学家猜测，这可能和抹香精的身体构造有关。 抹香精上半身集中了肺以及充气的鼻窦等重要器官，而下半身都是紧密肌肉和骨骼，这就导致了抹香精头部浮力比下半身重，当抹香精睡着后，头部不知不觉就会朝上。另外，抹香精是世界上脑袋最大的动物，其大脑里含有 超过一千升的金脑油，他就像是潜水艇的重物。在正常情况下，抹香精会通过血液循环的方式让金鱼油融化流动，当温度比较低时，金脑油就会凝固，金脑油凝固，抹香精就会下沉，反至金脑油液化，抹香精就会上浮。 所以每次睡觉，抹香精都会将经脑油调节成液态，让自己悬浮在半空中，方便自己浮出水面换气。由于抹香精作为哺乳动物，主要依靠肺呼吸，在睡觉前，抹香精都会浮出水面，憋住一大口气，然后下潜到两千多米的深海里。这些氧气只会提供给重要器官，能维持一个小时左右。 而在睡觉过程中，抹香精有一半大脑处于清醒状态，眼睛也是睁着的，想睡又不敢睡，这是为了在遇到危险时能够第一时间察觉。并且抹香精不像人类， 他们一天只睡十五分钟，是世界上睡眠最少的哺乳动物，其余时间抹香精都在海里游动或捕食。抹香精独特的睡眠方式，为大自然创造了一副奇观。那么你还知道哪些睡觉奇葩的动物？

hahahaha， baby bus number two thousand two hundred fifty five the amazing gorilla gorillas are found in western africa in the lowlands， they're mostly vegetarian and like to eat roots shoots fruit bark and wild celery yeah make sure you wash it first gorillas can climb trees sometimes watch out below， but prefer to spend most of their time on the ground no， i don't want to be on the ground well， if we run fast enough maybe we'll fly yeah we'll fly maybe we won't that was stupid a group of gorillas is known as a troop they're led by a male silverback who also likes to lie on his back yeah you got a problem with that this overback decides where the troop eats and sleeps good idea excuse me baby gorillas stay with mom until they're five months old， wait i'm not tired i like one playtime is very important for learning how to fit in like a massage sir， ow， yes， ow all very relaxing ow yeah thank you the youngsters try to copy their big daddy look at me i'm climbing right now we're climbing the door ha ha camilla， there's guys are crazy and sometimes dad will even play with them ah dad， dad you're it oh great we look at me what now classic kids they may be a bunch of hairy show offs but the western lowland gorilla is truly an amazing animal gorilla orange ten chocolate diet monkey chimpanzee humans evolve from monkeys then why are there still monkeys there's many things wrong with this question like the fact that we're more closely related to apes than monkeys okay then so why are there still apes asking why there's still apes is like saying if some americans in australians came from british people then why are there still british people when we see two adjacent branches out here on the tree of life what we mean is that they have a shared ancestor some organism a long time ago whose descendants took different evolutionary journeys that's the way it is for turkeys and t rexes， whales and hippos even high raxes and elephants there are still apes because apes are good at being apes the point is this we're not more evolved than a chimpanzee， we just evolved differently it's often said that evolution is survival of the fittest， but it's more like survival of the fit enough as long as the species traits are good enough to survive and reproduce in their environment that species will live on the tree of life is not a ladder so to all my cousins out there， gorilla， orangutan or chimpanzee you're the best ape you can be and that's good enough for evolution and me stay curious。