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plants,arerichratherthanstarchy.
Becausefatiscriticaltoanimallife,most
animalsareabletotakeadvantageof
abundantfoodbylayingdownlargestoresof
fat.Manyspecies,frominsectstofishtobirds
tomammals,gorgethemselvesinpreparation
formigration,breeding,orsurvivingseasonal
scarcity.Somemigratorybirdsputon50%of
theirleanweightinfatinjustafewweeks,
thenfly3,000to4,000kilometersfromthe
northeastUnitedStatestoSouthAmerica
withoutrefueling.Inseasonallycoldpartsof
theworld,fatteninghasbeenpartofthe
resonanceofautumn,thetimewhenwild
gameanimalsareattheirplumpestandmost
appealing,andwhenhumanspracticetheir
culturalversionoffattening,theharvestand
storingofcropsthatwillseethemthrough
winter’sscarcity.Humanshavelongexploited
thefatteningabilityofourmeatanimalsby
overfeedingthembeforeslaughter,tomake
themmoresucculentandflavorful(p.135).
HumansasMeatEaters
Meatbecameapredictablepartofthehuman
dietbeginningaround9,000yearsago,when
earlypeoplesintheMiddleEastmanagedto
tameahandfulofwildanimals—firstdogs,
thengoatsandsheep,thenpigsandcattleand