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arroba
I first got interested in alligators when I discovered, from zoologist Norbert Smith, that the “reptilian brain” theory – according to which alligators cannot show emotion because the mammalian brain (which they don’t have) must evolve first – can’t be true.
Alligators are quite capable of showing emotion or curiosity about anything that they are capable of understanding. That includes sex and baby alligators. Their intellectual limitations come in part from the fact that they are exothermic (cold-blooded), and therefore cannot keep up activities for as long as endothermic (warm-blooded) animals.
Now, I see Smith has written a book, summarizing a lifetime of research into the passive fear response. It has long been held that animals speed up their metabolism when frightened (the fight or flight response), but Smith found that many animals – particularly alligators – slow their metabolisms down to almost nothing, which enables them to conserve energy.
I don’t think Smith would have discovered this if he was big on establishment thinking. Read my review.