Researchers in Germany have invented a way to remotely track thousands of animals - over years - to learn more about how they make decisions and accumulate knowledge over their lifetimes, and their migration habits.

Their goal is to use powerful sensors to monitor the animals and build a network they call the "internet of animals".

The project could also help to improve protection for animal species worldwide.

Guest: Professor Mark Wikelski, Director of the Department of Migration at the Max Planck Institute of Animal Behaviour.