David Barry and Sonia Shaw talk about the wonders of animal migration. Why is it so important to know how animals find their way? And what are some ways we can think about invasive species?
As part of a massive new global tracking project, scientists are monitoring animals from a receiver on the International Space Station, mapping the incredible, previously unknown journeys that animals undertake. They’re beginning to tackle questions like how far do animals actually move? And how in the world do they know where they’re going?