Eider feathers, or down, aren't just for duvets. In fact, a hormone in those feathers called corticosterone, can indicate the stress eider ducks have been under as they molt. Yukon-based eider researcher Jane Harms explains that stress can be due to nearby predators or sometimes changes in their environment. So, not only can the stress hormone indicate eiders' health and their ability to reproduce, it may also be an indicator of climate change. Get undercover and tune into the tale.
Wetlands are delicate ecosystems. So the last thing researchers really want to do is churn up those wetland waters just to sample them. But what if a flying robot could do that for them? How? We do a flyby visit with a young inventor, Nathan Hoyt, who worked with a small team of high school students to figure it out. Plus, they're making a business out of it. Listen in. We promise we won't drone on.