1. \u0064\u0061\u006E\u0063\u0069\u002E\u0039\u0031\u0031\u0063\u0068\u0061\u002E\u0063\u006F\u006D
1. 出于本能，母鸡马上把小鸡拥盖在它的翅膀下。 Ants are social insects; the herding instinct in sheep or cattle; swarming behavior in bees.