Going Steady: 10 Animals More Monogamous Than Us

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black vulture chicks photo
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The black vulture is also known to throw a claw or two, enforcing fidelity by attacking extra-pair copulation that takes place nearby -- whether it includes an unfaithful mate or unfaithful neighboring vultures.

Again, this monogamy is about survival, as both parents need to incubate eggs, each taking a 24-hour shift. Then the hungry baby vulture needs food delivered for eight months.

Photo via wilddelaware.com