The 7 Animals Most Faithful to Their Mates

Swan

Swans are animals that live in pairs. In the winter months, they are known to already be in heat. When they meet a potential partner, swans swim near one another and perform special neck movements. Once the eggs are laid, it is the female who takes care of them, although the male usually replaces her on occasion.

They are very faithful to their breeding territory, and can be aggressive to other swans and even to humans if the swans are domestic. They form long-term relationships with their partner, and even after death, they never seek another partner again.

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