Crows are remarkably intelligent birds that craft tools from twigs to extract insects from trees.
In a rope-pulling experiment, hyenas showcased impressive problem-solving and teamwork by unlocking food without prior training.
Honeycombs are a marvel of natural engineering, using hexagonal shapes to maximise space and strength with minimal material.
A 2004 study found young cows display excitement, like jumping and kicking, when they solve problems, highlighting their capacity for complex thought.
Studies reveal pigeons have brain structures similar to humans in areas linked to memory and problem-solving.
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