Researchers have examined animal cognitionin mammals (especially primates, cetaceans, elephants,  dogs, cats, pigs, horses, cattle, raccoons, and rodents), birds (including parrots, fowl, corvids, and pigeons), reptiles (lizards, snakes, and turtles ) , fish and invertebrates (including cephalopods, spiders, and insects).
Researchers have examined animals that placed in the cognition, in mammals instead of humans; (included primates, cetaceans, elephants, bears, dogs, cats, pigs, horses, cow, rabbits, raccoons, and rodents), birds (including parrots, fowl, corvids, and pigeons), reptiles (lizards, snakes, and turtles , fish and invertebrates (including cephalopods, spiders, and insects).
R
animal cognitionin mammals (especially
animals that placed in the cognition, in mammals instead of humans; (included
A
bears,
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cattle,
cow, rabbits,
D
)