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.
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。
Tattersall says it makes sense that arboreal primates may have been "primed, " for upright walking on the ground.
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”。
"Basel 2 is not perfect, but it is a lot better than what went before," says John Tattersall, a partner at PricewaterhouseCoopers, an accounting firm.
普华会计师事务所的JohnTattersall说，“巴塞尔协议2不完美。但是它比上一版好多了。”
"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."
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
Dr. Tattersall believes the leap to humans may have been brought about very suddenly, perhaps by a few critical genetic changes, which is why the transition is so hard to trace in the fossil record.
塔特萨尔博士认为，转变到人类的飞跃产生已经很突然，或许由于几个重要的基因变化。这就是为什么这个转变在化石记录里很难找到。
Dr. Tattersall believes the leap to humans may have been brought about very suddenly, perhaps by a few critical genetic changes, which is why the transition is so hard to trace in the fossil record.
塔特萨尔博士认为，转变到人类的飞跃产生已经很突然，或许由于几个重要的基因变化。这就是为什么这个转变在化石记录里很难找到。
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