英语听力：2013-04-10 恐龙之战之极限生存 Extreme Survivors—10

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And this well-protected herbivore is everywhere. In fact in the Late Cretaceous, Triceratops outnumbered Tyrannosaurs ten to one. Their success is down to one reason. 

 

A single thrust of the brow horn could penetrate¹ right into the cardiac chamber² or the lungs. 

 

If you’re gonna put a meter-long horn into a chest cavity of a T-Rex, the chance of you doing some damage are pretty great.

 

Tyrannosaurus Rex is stabbed in the eye. 

 

The key element for any predator³ is to go in, make the kill, get what they need, and do it without injuring himself.

 

For a carnivorous predator, losing an eye could be fatal. Back at the nest, the chicks are guarded only by the male. Over him, a Quetzalcoatlus senses blood. On the ground, one parent is down and the other faces starvation. For a vulnerable baby T-Rex, the situation couldn’t get much worse.

 

Sauroposeidon is the tallest land animal of all time. At 17 meters high and 30 meters long, it would dwarf⁴ any living creature today. But despite these mammoth⁵ proportions, its brain is tiny, weighting just over 100 grams. 

 

The brain size of Sauroposeidon would probably be about the size of a cheeseburger. 

 

It probably had the smallest brain size to body size of any big animal that’s ever lived.

 

Big, dumb, brute⁶. 

 

A Sauroposeidon’s brain is a thousand times smaller than its body, just 1/8 of the brain capacity of a T-Rex. And its cerebrum, where strategic thinking takes place, is barely developed.

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