French Camel Corps, Tunisia, 1943. Photograph by Robert Capa. © Robert Capa © International Center of Photography / Magnum Photos.
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Miscellany
Ornithologists have found that hormones strongly determine aggression between sibling seabirds. Blue-footed boobies rarely attack a nest mate, while among Nazca boobies—born with androgen levels three times higher—the elder of two hatchlings unconditionally attacks and kills the younger one shortly after birth.
Opposition is not necessarily enmity; it is merely misused and made an occasion for enmity.
—Sigmund Freud, 1930
