Horseshoe crabs play a unique role in medicine, but they’re also ecologically important in their home waters along the Atlantic coast. Can regulators balance the needs of humans and nature?

Genetic rescue is an under-used strategy for the conservation of endangered and threatened animals in the US, report researchers.

More than half of the world’s turtle species are endangered or threatened, and overhunting of wild species is a major cause.

A population of endangered red-crowned parrots is thriving in urban areas of South Texas, research finds.

Botanizing is the practice of observing and appreciating plant life. Two plant scientists explain how it benefits people and the planet.

New research clarifies why some endangered green turtles in Brazil develop a tumor disease associated with a herpesvirus.

The distribution of rare butterflies in Eastern Denmark has plummeted by 72% in just 26 years, researchers report.

Rhino rays, which are close relative of sharks, are some of the most fascinating – and most threatened – fishes that you’ve never heard of.

Lesions may reflect decreases in southern resident killer whales’ ability to fight disease, according to new research.

A GPS wildlife tracker that uses an animal's own movements solves a problem faced by biologists seeking to track wild animals for years: dead batteries.