How does an ecosystem distribute its energy across body sizes? A new study suggests the answer depends on where you are—and how much humans have altered the landscape. Analyzing communities of birds ...

Relatives of the llama are dropping dung as they venture into higher elevations in the Andes Mountains, providing a nutrient-rich environment for life to thrive despite glacier loss. Climate change is ...

Have you ever heard of the term environmental DNA (eDNA)? This refers to DNA from animals that is found in the environment as a result of natural shedding. Think: dead skin, feces, fur, etc. When ...

Climate change is melting away glaciers around the world, but in the Andes Mountains, a wild relative of the llama is helping local ecosystems adapt to these changes by dropping big piles of dung.