Males engage in a two-week-long sex marathon with as many females as they can find. Each frenzied encounter can last up to 14 ...

In the animal kingdom, mating isn’t always about survival. From praying mantises to octopuses, some species die during or ...

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 ...

The results of inbreeding can be very distressing to witness. In this Instagram post, we see a captive lion with skull ...

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 ...

When the total solar eclipse happens on Monday, animals at homes, farms and zoos may act strangely. Researchers can’t wait to see what happens when day quickly turns to night. By Juliet Macur and ...

In CUriosity, experts across the CU Boulder campus answer pressing questions about humans, our planet and the universe beyond. This week, Marc Bekoff, professor emeritus in the Department of Ecology ...