Pandas can spend as much as 16 hours a day eating
Appetite is an intellectual domain as well. As with stomachs, we should pity minds that do not eat.
Earthworms eat their weight in food each day
Blue whales can consume as many as 40 million krill, or 8,000 pounds (3,600 kg) daily
The giant panda can eat up to 83 lbs of bamboo a day

Birds generally eat twice their body weight each day
Dragonfly larva are voracious, even cannibalistic, aquatic creatures; they eat tadpoles, mosquitoes, fish, other insect larvae and even each other.
Appetite is essentially insatiable, and where it operates as a criterion of both action and enjoyment (that is, everywhere in the western world since the sixteenth century) it will infallibly discover congenial agencies (mechanical and political) of expression.
Seahorse babies eat as much as 3000 pieces of food a day.
Appetite is most violent in lust and hunger: lust is a perpetual call to propagate oneself, hunger to preserve oneself.
Appetite is an instinct thoughtfully implanted by providence as a solution to the labor question.