Climbing for the origins of life

Dr. Robin Kodner regularly goes to extremes in the name of science. That’s because the microscopic algae she studies live only on glaciers and snowfields high in the mountains. At 2 billion years old, these single-celled colonies predate plants, animals and even fungi. By observing these archaic creatures, Robin can learn how all life evolved in the very beginning — and how it might survive into the future.

How one scientist tracks giant, invisible cats

What's it like to study an animal that is almost impossible to see? Wildlife biologist Lauren Satterfield leads us on an epic adventure by car, snowmobile and on foot through deep snow to track elusive mountain lions in the wilderness. As human development expands into their territory, her work might help us learn how these big cats and humans can coexist without conflict.