An instinct to play
Very few species of animal habitually play after they are adult; they are concerned with eating, sleeping or procreating, or with the means to one or other of those ends. But otters are one of the few exceptions to this rule; right through their lives they spend much of their time in play that does...
The global thermostat
For the globe as a whole, the ocean is the great regulator, the great stabiliser of temperatures. It has been described as “a savings bank for solar energy, receiving deposits in seasons of excessive insolation and paying them back in seasons of want.” Without the ocean, our world would be visited by unthinkably harsh extremes...
