Male giraffes fight each other by 'necking'! They push their long necks against each other, bending and twisting them in order to win the fight by a show of strength. Many animals fight this way, including snakes, insects and crabs. Competing in this way allows animals to find out who's boss while protecting themselves from injury. The strongest wins and the loser just has to go away.
Glucose is food for thought
Glucose is food for thought Oxygen and glucose have been found to boost memory
and brain power. These two are shown to improve cognitive function,
particularly in more difficult tasks. Glucose tablets or inhaling
oxygen at an oxygen bar would not be sufficient to impove brain
function for any useful amount of time, but taking the herbal
extract ginko probably would. Research has found that ginko likely
improves blood flow, oxygenation and glucose metabolism, and can
improve attention spans for as long as six hours. APRIL 2, 2001
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