However, once he overcame his initial reluctance, Adam soon found joy and comfort in moving through the pool like a fish. This newfound passion for swimming quickly became a part of his daily ...

Fish can't see themselves, or use a mirror! How do they know they are in the right school of fish? Almost 80 per cent of the more than 20,000 known fish species school at some point in the life cycle.

It is not that easy to reconstruct the field of view of free-swimming fish. Just tracking the position of the eyes is not enough; the eyes must always be set in relation to the animals' body posture.