Why birds have the edge over GPS navigation | Daniel Glaser

How birds' sight and sense of smell make their internal compass more accurate than technologyBy now most of us will have completed our annual migration. Unlike the birds, our ability to get there usually relies on a variety of navigational aids, often on our mobile phones.In both birds and phones, tiny accelerometers measure small movements and rotations to keep them orientated. They both use magnetometers to sense the earth's magnetic field, but the birds have an additional trick - polarised light. Continue reading...