Oral sex has also been observed in spotted hyenas, goats and sheep. Fellatio has been documented in fruit bats, with it ...

Reproductive neuroendocrinology has undergone remarkable advances over the past two decades, driven by the discovery of kisspeptin neurons, as well as ...

Preclinical animal testing has played a critical role within medical history. Yet it remains an underdiscussed topic within the medical humanities. What might happen, then, if we analyse the animal ...

Spotted hyenas live in hierarchically organized groups (clans). An individual's dominance over another determines priority access to resources such as food or mating partners, and thus reproductive ...

Kangaroos are the iconic Australian animals that are famous for their ability to carry their young around in a pouch on their front. However, they actually have one of the most unusual reproductive ...

In some species, offspring are born (or hatch) at roughly the same time. This is called synchronous reproduction: an evolutionary strategy to give offspring the best possible chance of survival. One ...