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Most adult animals reach a stable weight no matter how much they eat. Some internal ’weight-stat’ adjusts their metabolism to keep it on target’. But how does the body know how heavy it is? The obvious answer, says Daedalus~2, is by direct weighing~3——the sensing of gravitational pull~4. He points out that fish seem to lack a weight-stat, and simply keep on growing. Since they are fully buoyed up~5 by the water around them and have zero effective weight, they have no way of judging or controlling their own growth. If land animals could also be buoyed up in this
Some internal ’weight-stat’ adjusts their metabolism to keep it on target ’. But how does the body know how heavy they is. The obvious answer, says Daedalus ~ 2 , is by direct weighing ~ 3 - the sensing of gravitational pull ~ 4. He points out that fish seem to lack a weight-stat, and simply keep on growing. Since they are fully buoyed up ~ 5 by the water around them and have zero effective weight, they have no way of judging or controlling their own growth. If land animals could also be buoyed up in this