New Guinea's tropical rainforests are home to one of the animal kingdom's most spectacular courtship rituals, with male birds ...

From homosexual penguins and sex-transitioning fish to pregnant male seahorses and sexually dominant female bonobos, thousands of species defy our expectations of gender and sexuality. Director Drew ...

A new study, published in Ecology and Evolution, shows that social living is associated with longer lifespan, but also that the benefits of sociality level off once animals move beyond living in pairs ...

Nick Kroll, June Diane Raphael, Zach Woods and Sabrina Jalees lead the cast voicing horny woodland creatures looking for sex ...

The transgender creative discusses his new documentary, Second Nature, which shows how gay penguins and sex-changing fish are ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Over the years, Pew Research Center has asked Americans about the morality of ...

This November 2023 photo provided by Gaorong Li shows a Haootia-like fossil at Yunnan University in Kunming, China. (Gaorong Li via AP) WASHINGTON — Newly discovered fossils have given scientists ...

WASHINGTON (AP) — Newly discovered fossils have given scientists their first real glimpse of when Earth made a crucial transition from plants and unrecognizably simple animals to the complex creatures ...

Goblet-shaped sea jelly relatives with miniature “arms.” A plump, legless creature resembling a sausage. Long, wormlike animals tipped with flat “holdfast” discs for anchoring to the seafloor.

This November 2023 photo provided by Gaorong Li shows a Haootia-like fossil at Yunnan University in Kunming, China. (Gaorong Li via AP) (Gaorong Li, Gaorong Li) WASHINGTON – Newly discovered fossils ...

WASHINGTON (AP) — Newly discovered fossils have given scientists their first real glimpse of when Earth made a crucial transition from plants and unrecognizably simple animals to the complex creatures ...