I'll give you an example -- if you take a horseshoe crab off the beach, and you fly it all the way across the continent, and you drop it into a sloped cage, it will scramble up the floor of the cage as the tide is rising on its home shores, and it'll skitter down again right as the water is receding thousands of miles away.
Evo jedan primjer. Ako uzmete potkovastog raka s plaže, i ako ga prenesete na drugi kraj kontinenta, i ispustite ga u kavez s kosim dnom, on će se početi verati po kosini kako se plima diže na obalama od kuda je došao, i spuštat će se dolje jednako tako kako se voda povlači 1,000 milja daleko.