Editor’s Note: The following contains spoilers for Alien (1979), Prometheus (2012), and Alien: Romulus (2024). 2024 will likely come to be known as the year of pregnancy horror. With Immaculate and ...

Editor's Note: This article contains spoilers for Alien: Romulus. Alien: Romulus doesn't hold back on the gore, cranking up a twist on the iconic Chestburster scene to a deeply haunting level.

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Male pregnancy is a rare phenomenon in the animal kingdom, ...

Reversed sex roles: In seahorses, it is the males who carry offspring to term. The females lay their eggs into a special brood pouch on the bellies of the males where they are fertilized by the male’s ...