所有海豚，包括宽吻海豚，是都属于鼠海豚科。
在所有哺乳动物中，人类和海豚的脑最大。而且，人和海豚的血液中都有红细胞，特别利于葡萄糖通过，并能将大量的糖运送到脑部。
Humans and dolphins have the largest brains of all mammals and both have red blood cells that are exceptionally permeable to glucose and able to ferry large amounts of the sugar into the brain.
然而，让饲养员不解的是：他们的食谱并没有改变啊。 所有的海豚都一直是这个菜谱——15公斤青花鱼和白鱼的混合饲料。
The dolphins were weighed and keepers realised that all 19 had become heavier.
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