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When other seeds germinate, the seedlings struggle to emerge into the sunlight, so they can photosynthesise and make their own nutrition. When a squawroot seed germinates, it squirms farther underground in search of its nourishment. It "feels around" in the dark until it finds the root of an oak or beech tree and latches on for dear life. For the rest of its life it will feed parasitically off these tree roots. The oak roots develop little, knobby protuberances where the squawroot has latched on,
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