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̽»¨Ö±²¥swirling currents occur when the rodlike structures that extend inward from the cells’ membranes bend in tandem, like stalks of wheat caught in a strong breeze, according to a study from the ̽»¨Ö±²¥ of Cambridge and the Flatiron Institute.

New research reveals how biological arms races between cuckoos and host birds can escalate into a competition between the host evolving new, unique egg patterns (or ‘signatures’) and the parasite new forgeries.