Bernie Krause has been recording wild soundscapes -- the wind in the trees, the chirping of birds, the subtle sounds of insect larvae -- for 45 years. In that time, he has seen many environments radically altered by humans, sometimes even by practices thought to be environmentally safe. A surprising look at what we can learn through nature's sym...

What do dinosaurs, hens, and robots have in common? Bruno Grossi is a biologist and he tells us through his ingenious experiments how he's contributing to biology while developing innovative technologies based on nature. Bruno is a biomechanist: he's interested in know how things move -- current animals, dinosaurs, robots. Movement is a serious ...

Brian Cross, director of professional services at ESRI, talks about passion and purpose.