Scientists have documented same-sex behavior in many animals. Learn what it means, how it varies, and why human labels can mislead.

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Animals may not celebrate Valentine’s Day, but courtship rituals, pair bonding and fierce competition shape love in the wild.

From spraying mates with urine to changing one's sex, these are the most intriguing courtships in the animal kingdom.

Some animals form lifelong pair bonds that run deeper than simple mating. These connections shape how they live, move, and interact with the world. When a partner is lost, the change is often visible.

The Lion King got one thing right: love is in the air on the savanna. From the birds perched in the trees to the foxes curled in their den, plenty of these grassland creatures are monogamous and mate ...

Some animals mate for life. Others? Not so much [HOLA] Humans aren't the only ones who break hearts; in the wild, infidelity is practically a survival strategy. When we talk about love and loyalty in ...

For some animals, reproduction comes at the ultimate cost—their own lives. While this may seem extreme, it's a natural strategy to maximize reproductive success. These species invest everything into ...