This can lead to clawing, biting and other violent behaviour.

这可能导致抓挠、咬人和其他暴力行为。

And the results so far have been optimistic, with a significant reduction in violent behaviour reported among Cape Town's young surfers.

到目前为止，结果还算乐观，据报道，开普敦年轻冲浪者的暴力行为显著减少。

Add this to field studies of the sometimes violent behaviour of mankind's closest living relative, the chimpanzee, and the idea that making war is somehow in humanity's genes has seemed quite plausible.

除此之外，还可以到野外观察一下与人类亲缘关系最为相近的黑猩猩，可以知道黑猩猩有时也有暴力行为。由此，威尔森的观点似乎相当有说服力。