New research shows male bonobos use subtle, hidden cues - not just swelling - to track a female’s fertile days with ...

What is a male deer called? Learn the correct terms: buck, stag, hart, and bull. Discover which name applies to which deer ...

Sometimes the animal kingdom surprises us when they act the exact same way as humans do.

Pigs, rats, cats and mongooses, all brought to the island decades earlier by humans, were to blame for their demise, preying ...

“Almost all other monogamous mammals either live in tight family units of just a breeding pair and their offspring, or in ...

Birds flash iridescent feathers, reptiles show off electric patterns, and fish glow with colors that seem unreal, but most ...

Last year, they were hit with a deadly virus. The year before that, starvation. What will this breeding season bring for the ...

Male bonobos can decipher females' unreliable fertility signals, allowing them to focus their efforts on matings with the ...

Male broad-tailed hummingbirds sync speed, sound, and flashing colors in a 300-millisecond dive that dazzles females during ...

Male bonobos are able to interpret female fertility cues even when those signals do not reliably indicate ovulation. This ability helps them direct their mating efforts toward times when conception is ...

Humans are far more monogamous than our primate cousins, but less so than beavers, a new study suggests. Researchers from the University of Cambridge in England analyzed the proportion of full ...

Perched on a plastic chair overlooking a colony of Nazca boobies in the Galápagos Islands, researcher David Anderson ...