Geography plays a role in how the small mammals adapt to environmental changes.

The insects have already transformed parts of Signy Island in the South Atlantic Ocean and could drastically change Antarctic ecosystems if introduced by humans.

Researchers suspect the source of the toxins may be some of the state’s 50,000 or so marijuana farms.

Marabou storks on Kenya’s Mara River feast on the carcasses of migrating wildebeest that failed to make it across the waterway.

When scores of migrating wildebeest fail to survive a treacherous river crossing, their corpses fuel thriving ecosystems.

When thousands of animals die during mass migrations, ecosystems accommodate the corpses and new cycles are set in motion.

From fish harvests to cottonwood forests, organisms display evidence that species change can occur on timescales that can influence ecological processes.

Guppies transplanted between different communities in Trinidadian streams evolved in response to changes in predation threat in just a few generations.

Researchers report the first evidence that acidified waters alter the ocellated wrasse’s reproductive behavior in the wild.