Animal Farm.

RSJS writes:

Fish are renowned for having a three-second memory; however, evidence suggests they can be highly manipulative and cultured.

Parrots, when shown two different objects, can use language to describe differences in their colour, shape and texture.

Sheep can carry the mental image of another sheep or person for two years.

Chickens feel intention and expectation and can tell people apart.

Pigs may use a sophisticated form of consciousness to deceive other animals for greater personal reward.

Elephants make graves by breaking branches to cover their dead colleagues. They have a large hippocampus, the part of the brain that stores mental maps."
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I have visions of an entire series...