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Suffering in animals
Sleep as an etiological problem
4 other sections not shown
acclimatization active sleep alternative altruism animal behaviour animal cognition animal suffering animal's behaviour behav benefits birds Chapter circadian circadian rhythms cognitive consequences of behaviour cost function cost of changing daily routine declarative representation demand functions deprivation designed Dickinson dishabituation dreams drinking effect environment environmental ethologists ethology evaluation evidence evolutionary example explanation feeding foraging goal function goal-achieving goal-directed behaviour goal-representation goal-seeking gulls human hunter-gatherer illustrated in Figure income increased incubating bird individual animal internal involved iour isoclines kcal kcal/day labour supply curve lapwings learning lithium chloride mammals maximize MBMR McFarland and Houston mechanisms Meddis motivational natural selection normal obtain occur optimal perform physiological positive feedback possible predators preprogrammed problem procedural quiet sleep rats reciprocal altruism reciprocal exchange relevant result robot role Sibly and McFarland situation species state-space sucrose teleological tendency thermoregulation trade-off trajectory usually utility wage rate