Crows, much like humans, are capable of holding grudges for extended periods. Research indicates these intelligent birds can ...

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Crows can recognize faces, make their own tools, and understand complex subjects — and we're only beginning to understand everything that they can do. Follow BI Video: On Twitter More from ...

Some animals never forget—and not just in that folksy, "elephants remember everything" way. Across land, sea, and sky, particular creatures are absolute memory machines, storing details that would put ...