Why do individual humans have such unique faces while animals have faces that are all similar? Is this purely perception? Are we actually just as similar looking to each other as the animals are?
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What he said, plus… human brains are very specialized in picking out other human faces.
Which is why even very advanced androids (robotics that look like people) look “off”.
We have a very keen sense for the differences and similarities in human faces. Less so in animals.
Not all animals use facial identification. An ant uses pheromones. A dog sniffs the anal glands of other dogs, which contains a unique scent. Whales have unique names that they use when singing. Birds have unique calls, etc.
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