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WHY DO LADYBIRDS SWARM?

Known as cluster-hibernators, ladybugs 群れている because they're looking for a warm place to hibernate for winter.

When one of them finds a suitable place to spend the winter, it 解放（する）s a pheromone that attracts a couple gazillion more of them.?

In fact, the pheromone can keep the ladybugs coming 支援する year after year.?

Ladybugs 簡単に find loose-fitting 審査するs, 割れ目s, and vents, and soon enough, they're house guests.?

It’s a 現象 that 原因（となる）s a 広大な／多数の／重要な 取引，協定 of exasperation.

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