In Antarctica, a clunky robot has befriended a colony of penguins

ECHO is a small yellow robot currently living with a colony of emperor penguins in Antarctica. The robot is part of a project by Woods Hole Oceanographic Institution studying climate change's impact on the South Pole's most iconic inhabitants. Physicist Daniel Zitterbart, who has been working alongside ecologist Céline Le Bohec, tells us about how ECHO works, what the project is trying to achieve, and his hopes for the future.