From the difficulty of tracking rare populations to the danger of poachers exploiting distribution data, the complications of studying endangered species require creative solutions from researchers.

To calculate the likelihood that organisms will be harmed by climate change, researchers estimate their exposure, sensitivity, and ability to adapt to new conditions.

Researchers find that conserving marsupials on a predator-free island dampens their avoidance behaviors, which could mean trouble for their reintroduction to mainland Australia.

The introduction of the poisonous Duttaphrynus melanostictus into Madagascar could be fatally risky for the island’s native predators.

See the American Museum of Natural History curator Mark Sidall explain his fascination with leeches, which he and other scientists are using to infer biodiversity in some far-flung places.

The University College London researcher investigated how environmental pressures affect animals.

When forlorn mating calls went unanswered, biologists set him up with an online dating profile.

A project aims to preserve samples of the climate change–vulnerable animals for future restoration.

Conflict threatens already at-risk wildlife populations and conservation efforts in war-torn areas.