The scientists added, "Horses trained without reinforcement expressed four to six times more 'negative' behaviors, such as biting, kicking and 'falling down' on the experimenter."
科学家们补充说,“没有经过强化训练的马会表现出4到6倍多的‘消极’行为,如咬,踢和‘对实验者大发脾气’。”
Mice with a rodent equivalent of the disease showed a 50 per cent reduction in levels of amyloid protein in their brains after the scientists added caffeine to their drinking water.
把疾病基因移植到鼠类身上,科学家发现当把咖啡因注入到老鼠饮用的水中,这些老鼠脑内的淀粉状蛋白指数会减少50%。
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