We can look at the sense of vision and see the attributes of a predator. 

 

An eye is essentially just a photon-catching device. Tyrannosaurus would have had an extremely large retina over which they could collect those photons. 

 

T-Rex’s eyes are 40 centimetres apart providing exceptional binocular vision, the ability to perceive depth.

 

Collecting more photons gives the brain more visual information to interpret, more detail about its surroundings.  

 

And these eyes are crucial for an alfa hunter for another reason.

 

A Tyrannosaur’s eyes were quite high up, and therefore they always had a very tall perspective on the world. 

 

It could see great distances. For them, the horizon was very, very far away. 

 

A T-Rex can distinguish fine visual detail as far away as six kilometers, eyesight far superior to that of humans. 

 

Its hearing is also a significant advantage for a hunter. 

 

What we see in the inner ear of T-Rex is a hearing organ that’s long and suggests that hearing was very important to T-Rex. 

 

It’s called the cochlea. It’s a hollow, cone-shaped tube filled with liquid. This tube vibrates in response to sound waves.

 

Thousands of tiny hair-like cells detect this movement, then send electrical signals to the brain. 

 

It was able to actually hear very low frequency sounds. And so something even off in the distance was gonna be within its perceptive world. 

 

我们可以从视觉上看看雷克斯霸王龙的特点。

 

本质上来看，眼睛就是雷克斯霸王龙的光子收集器。雷克斯霸王龙应该拥有一个极大的视网膜，而这些光子则呈现在视网膜上。

 

雷克斯霸王龙的双眼相距40厘米，这使它拥有例外的双眼视觉，并拥有感知深度的能力。

 

收集越多的光子，大脑就能解析更多的视觉信息，而对于周围环境也探查地更精细。

 

而眼睛对于这种头号猎手的重要性也体现在另外的原因上。

 

雷克斯霸王龙的眼睛处于身体较高位置，因此可以以高处的视角观察世界。

 

它可以看到很远的距离。对于他们来说，视线十分遥远。

 

雷克斯霸王龙的视觉能够区分远达六千米外事物细节，对人类来说，这种视力遥不可及。

 

雷克斯霸王龙的听觉也是他们捕猎的重要工具。

 

我们可以看到，雷克斯霸王龙的内耳器官十分狭长，因此推断，听觉对于它们十分重要。

 

这叫做耳蜗。这是一个中空的圆柱形管子，其中充满液体。这个管子以震动形式对声波进行反应。

 

上万个如毛发般小的细胞能够检测这一运动，之后向大脑发送电子信号。

 

其实，雷克斯霸王龙可以听到频道很低的声音。所以，即使是很远处的事物也逃不过他们的感知世界。

 

 

 

despite being completely bald, this adorable aardvark nevertheless faced a rather hairy situation when it was rejected by his mother moments after being born. staff at busch gardens in tampa, florida, were forced to step in and care for the clumsy creature just hours after its birth on april 10. but despite a rocky start the new arrival is now thriving and has made his first public appearance at the usa park.

　　

the baby aardvark rejected by his mother just hours after being born care: the baby aardvark has substitute parents in the form of the busch gardens staff after birth, young aardvarks usually remain with their mother for approximately six months before moving out and digging their own burrow. a spokesman for the park said: 'obviously we like to let nature take its course but we had to step in when we discovered his mother wasn't being attentive. 'we were scared she might accidentally step on him or even bury her cub as aardvarks have a primary instinct to dig for food and burrow for shelter.' in the pink: busch gardens' new arrival is now thriving, as you can see in the wild, female aardvarks typically give birth to one newborn each year. the baby, which is yet to be named, is one of just 35 in zoos in north america. the animals have a huge appetite for insects and have been known to suck up 50,000 of them in just one hour. all the attention is clearly thirsty work for the aardvark.

 

         都说母亲是世界上最疼爱自己的人，在刚刚过去的母亲节，一则关于“母亲”的动物新闻进入了我们的眼帘。据悉，尽管呈现“秃头”脱发、脱毛的态势，这只在佛罗里达州--布希公园出生的“无毛食蚁兽”还是得到了大家的爱心和关注！在4月10日降临到这个世界上后，这只可爱的“无毛食蚁兽”因长相问题一度被自己的亲妈妈“拒绝”，在工作人员的“威逼利诱”下，他的母亲才“勉为其难”暂时抚养自己的幼崽。不管自己的妈妈是否喜欢，这只无毛食蚁兽还是以巨大的气场登录美国动物园，得到了大家的掌声。

动物园的发言人说：“很显然，我们应该尊重自然规律，并且不干涉动物的私人事情！但是，这只无毛食蚁兽显然没得到自己妈妈的喜爱，我们很担心他的妈妈会因为一不注意就踩死自己的宝宝，或者将自己的宝宝给埋了。”

 

　　动物小百科：非洲食蚁兽又叫土豚（aardvark），是一种身强力壮的动物，身长约140厘米，没有门齿和犬齿，像食蚁兽一样用长舌头卷吃白蚁。它们生活在非洲的大部分地区，从埃及南部到好望角都能发现非洲食蚁兽的踪迹。非洲食蚁兽肩高50~70厘米，体长0.9~2.2米，尾长44~71厘米，体重40~100公斤，属于大型食蚁兽，因为独特的牙齿结构在哺乳纲中独占一目---------管齿目，也是该目中唯一的一种；全身土灰色，毛发稀疏，吻部前突，耳朵很大，四肢短粗，生有利爪。

 

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