![]() Facial expression is of little use in the dark, thus it didn’t evolve in the ancestors of our pet cats. Furthermore, cats are nocturnal hunters, as is deduced from their vertical-slit pupils. The ancestors of domestic cats were lone hunters, so had less need for close communication. Nevertheless, I swear my cat smiles at me when I give him a bit of tuna.ĭogs are pack animals, so they have evolved the ability to communicate through facial expressions.īut as you have to be close enough to clearly see the facial expressions of others of your species for this to be efficient, dogs can also communicate through body language, sound and smell. With no other cats around to read their facial expressions, they didn’t need to have obvious ones, nor learn to interpret smiles and grimaces. ![]() So it is important that dogs can communicate their moods and feelings to their pack mates, for which an expressive face helps.īut cats are solitary animals – the undomesticated ancestors of house cats spent most of their time alone. ![]() Dogs are highly social animals, whose welfare depends on getting along with their pack mates, whether canine or human. ![]()
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