Reader's Digest 8月号の記事The Hunger Gamesの個所はとても視覚的で、良く分かります。
Food's central role in sibling rivalry is, in part, a matter of biology. The pancake-night melee at the Joyces was triggered by the same instinct that drives piglets to fight for position nearest the sow's head, where the nipples deliver the most milk.
Spotted hyenas attack a younger sibling within minutes of its birth in order to minimise competition for their mother's milk.
これは一人っ子だった人には分からないでしょうね。
Food's central role in sibling rivalry is, in part, a matter of biology. The pancake-night melee at the Joyces was triggered by the same instinct that drives piglets to fight for position nearest the sow's head, where the nipples deliver the most milk.
Spotted hyenas attack a younger sibling within minutes of its birth in order to minimise competition for their mother's milk.
これは一人っ子だった人には分からないでしょうね。
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