The evidence of left-handedness is often very dodgy indeed.

左撇子的证据其实往往非常可疑。

This means instead of their being a gene for left-handedness, it's really the lack of a gene.

这就是说他们不是有左撇子的基因，其实是缺少一种基因。

It's hard to pin down when left-handedness started, but we do have evidence that there were left-handed Neanderthals 500,000 years ago.

很难确定左撇子是什么时候开始出现的，但我们确实有证据表明五十万年前就有是左撇子的尼安德特人。

As traits go, this is very high; for comparison, genetics only explains about 26% of left-handedness.

就特征而言， 这是非常高的；相比之下，遗传学只能解释大约 26% 的左撇子。

These studies show that apes, like humans, show handedness - though for them right- and left-handedness is about equal, whereas about 85% of humans are right handed.

调查表明猩猩和人类一样的用手习惯，尽管它们可以平均的使用左右手，然而85%的人类是右撇子。

Apes get a large proportion of their food by 'fishing' ants from ant hills. These studies show that apes, like humans, show handedness - though for them right- and left-handedness is about equal, whereas about 85% of humans are right handed.

猩猩可以从蚂蚁山中找到大量的蚂蚁作为食物。调查表明猩猩和人类一样的用手习惯，尽管它们可以平均的使用左右手，然而85%的人类是右撇子。