Disease

Using remote camera traps, photographer Heath Holden captured rare images like this one of wild Tasmanian devils (Sarcophilus harrisii) in their natural habitat. The animals’ bright red ears and eerie, raucous scuffles earned the scrappy marsupials their haunting common name.

All Eyes on the Devil

Some Tasmanian devils have taken a surprising turn in response to a devastating cancer, offering new hope for the endangered species' survival.

Latest in Disease
Richard Stark, a biologist with the U.S. Fish and Wildlife Service, examines a tricolored bat (Perimyotis subflavus) near the entrance of the cave. Photograph by Geoffrey Giller
Glimmers in the Dark

"The Destroyer" is decimating bat populations across North America. But scientists are finding rays of hope.

Bearded fireworm (Hermodice carunculata) photographed with UV light. Atlantic, Bonaire, Leeward Antilles, Caribbean region, Netherlands Antilles
Fire on the Reef

Normally invisible to humans, fluorescent light shows like the one this fireworm puts on are helping medical researchers fight disease.

Giant Titicaca Lake frog {Telmatobius culeus} Lake Titicaca. Bolivia / Peru
Troubled Waters

The world’s largest aquatic frog may soon vanish from its namesake home high in the Andes.

zika mosquito
The Zika Challenge

As we look for ways to prevent the world’s latest mosquito-borne disease, our focus on the mosquitoes themselves might be obscuring a more sustainable solution.

Battling Disease

Elizabeth Hadly weighs in on why bats need our help—now more than ever—and why we need bats.