Reproduction is central to survival, but it may come at a hidden cost. In a new study, which drew on zoo records from more than 110 animals around the world, researchers found that blocking ...

Elephants are pregnant for up to two years. Females of some fish species starve for weeks while holding dozens of eggs and hatchlings inside their mouths. And pregnant humans commonly endure months of ...

Climate change has now become one of the biggest threats to ecosystems globally, as global cycles that have helped species thrive for centuries have shifted. Birds in particular, for their elaborate ...

A large-scale analysis of 117 mammal species found that preventing reproduction is associated with longer lifespans, suggesting a strong link between reproductive activity and life expectancy. Why do ...

An increasing number of people are opening up to the idea that humanity’s survival is tied to our ability to become a multi-planetary species. But for this to become a reality, countless technological ...

Julian Koplin receives research funding from Ferring Pharmaceuticals for an unrelated project. Neera Bhatia receives funding from UKRI Arts and Humanities Research Council for an unrelated project.

The flowerpot snake, one of the world's smallest snakes, has some unusual distinctions. Also known as the Brahminy blind snake, it's the only known snake species with three sets of chromosomes instead ...

Single Page Reproductions are printed as the page originally appeared in our print edition. This page option is ideal if the story you’d like a reproduction of is only on one page, or if the story ...

“This DNA repair and replication activity supports a fascinating mechanism called premeiotic endoreplication, a process through which the snake duplicates its chromosomes before dividing them, ...