去年，加拿大安大略布鲁克大学的格伦·塔特索尔发现，托哥巨嘴鸟身体中高达60%的体温都会通过其喙部流失。

Last year Glenn Tattersall of Brock University in Ontario, Canada, found the toco toucan loses up to 60 per cent of its body heat through its beak.

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塔特索尔说，为在地面直立行走，树栖灵长类动物可能已被“预先准备好”。

Tattersall says it makes sense that arboreal primates may have been "primed, " for upright walking on the ground.

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人类进化研究院的院长塔特索尔说，自然选择不能让令人喜欢的东西自行存在

"Natural selection can't call things into existence just because they are desirable, " says Tattersall, one of the deans of human evolutionary research. "Novelties happen randomly."

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The first, you can see on the board up there, is by another Russian composer, Modest Musorgsky.

首先,你可以看到那边的黑板上,是另一位俄罗斯作曲家,莫戴斯特·穆索尔斯基的作品

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So let's listen to some more music of Musorgsky here, Modest Musorgsky.

那么咱们再来多听,一些穆索尔斯基的音乐,莫杰斯特·穆索尔斯基

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