Early-rising sea turtles may use the Sun to find their way home, new Australian research suggests.
For a bigger but still lightweight GPS, the wireless Garmin Edge 1000 has got you covered
Science & Environment
Can birds see the Earth’s magnetic field? The latest research on navigation suggests they can and even hints that humans may be able to detect it too.
We asked adventurer Clark Carter which nav devices have helped him out of the most heart-stopping, high-altitude and hapless situations.