A behavioural neuroscientist called Edgar E. Coons thinks that humans find pandas so cute because of the "hedonic mechanisms" their features set off in us. They remind us of babies especially with their big eyes (the eyes are not that particularly big but the black patches around their eyes make them appear larger) round faces, snub noses and large heads (a large head and tiny body is much cuter than a tiny head and large body (like rats). Also the fact that they are extremely large and fluffy reminds us of a cuddly toy.
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