Trivial, smart animal, piece of cake.

这种事对于聪明的动物来说小菜一碟。

But with the Earth's climate changing and the loss of natural habits, many of the animals pieces on display are fighting for their survival.

但由于地球气候变化，很多自然栖息地消失，所以很多展出的动物都不得不艰难生存。