Learn how chemicals released by gut microbes end up in exhaled breath, and how researchers used those signals to identify microbial communities linked to disease.

Learn how the emergence of new plankton species started life's swift recovery after the asteroid impact that killed most dinosaurs.

Learn more about ancient giant kangaroos and the previous research claiming they were too heavy to hop. A new study finds that hopping may have been one of the few movement methods for these ancient animals.