现有的大部分证据支持这个观点。
大部分证据都被毁了。因此，不可能证明这种药物是有害的。
Most of the evidence is destroyed. Thus, it's impossible to prove that the drug is harmful.
有部分证据显示它参与过种内可能是雄性之间为争夺配偶而引发的斗角活动。
There is some evidence that it engaged in horn to horn combat among its own species, probably males fighting over mates.
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