关于动物大脑的冷知识，绝对大开眼界！

动物的世界对我们很多人来说都带有神秘的色彩，我们对它们知之甚少，也正是因为这样，我们才对动物王国充满了好奇。今天就来了解一下关于动物大脑的冷知识吧!

 

 

01

Squids have doughnut-shaped brains.

乌贼的大脑结构就像甜甜圈。

 

So giant squids have brains the shape of doughnuts. Not only that, but their esophagus runs directly through the hole in their brain. Because of this, squids have to bite their food into small pieces so the meal can fit through the esophagus. If the food is too big, it can scrape against their brain and cause damage.

巨型乌贼的大脑结构就像甜甜圈。此外，它们的食道可以直接通过一个洞连接大脑。因此，乌贼需要把食物咬成小块以便顺利通过食道。如果食物太大，可能会刮伤大脑并造成伤害。

 

02

Leeches have 32 brains..

水蛭有32个大脑。

 

 A leech's internal structure is divided into 32 separate segments, and each of these segments has its own brain.

水蛭的身体可以分为32个部分，且每个部分都有各自的大脑。

 

 

 

03

Sea squirts eat their own brains.

海鞘吞食自己的大脑。

 

The life of a sea squirt is as follows: it comes into this world as an egg that quickly turns into a tadpole-looking thing. It has one eye, a spinal cord, a tail, and a primitive brain that helps it move around. Once it finds its forever home (ocean floor, rock, boat), it attaches itself to said home. It then proceeds to eat its own brain, absorbing its tadpole-like body, and eventually turning into this creature.

海鞘的“一生”：最初是一个卵，后快速地成长为蝌蚪一样的生物。有一只眼睛、一条脊髓、一条尾巴和一个支持四处活动的原始大脑。一旦它找到了它永远的家(海底，岩石，船)，它就附着它的家上。然后它会吞食掉自己的大脑，吸收蝌蚪般的身体，最终变成这种生物。

 

04

An ostrich's brain is smaller than its eyeball..

鸵鸟的大脑比它的眼球小。

 

So, one ostrich eyeball is the size of a billiard ball (around two inches in diameter). Now imagine two of those in an ostrich's head. Its eyeballs are so large that there is only a little room for its brain. So because science is science and evolution is weird, an ostrich's brain is smaller than its eyes - which makes sense considering it runs in circles to "escape" from predators.

鸵鸟的眼球大约有一个台球那么大(直径约2英寸，5厘米)。现在想像一下，鸵鸟的头上有两个“台球”。它的眼球太大了，所以大脑只有一点空间。所以科学只是科学，进化则相对奇怪，鸵鸟的大脑比它的眼球要小——这也使它不属于“食肉动物”的范畴。

 

 

 

05

Starfish don't have a centralized brain.

海星没有位于中心部分的大脑。

 

The starfish's anatomy is super fascinating. Starfish use sea water (instead of blood) to pump nutrients throughout their bodies. And its central nervous system is distributed throughout its legs (or arms, who am I to say?), so it technically doesn't have a localized brain.

海星的身体构造非常迷人。海星用海水(而不是血液)来输送体内的营养物质。它的中枢神经系统的分布于腿上(或胳膊上，额...该怎么说呢?) 因此，严格来说，它没有位于中心部分的大脑。