The introduction of contraception was driven by the need to balance the ecological impact the horses had on the environment.

parallels between women's objectification and animals' dehumanization as both products of the same patriarchal system.

Dr. Gigliotti shares her views on how animals use creativity in their mating rituals and lessons about bio-diversity for humans.

Dr. Brennan shares her surprising discovery while studying birds — many species, such as ducks, have remarkably diverse genital structures.