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#Illustration by #LaurieOKeefe of the 2 year #life cycle of the #blacklegged #tick (Ixodes scapulars) showing the 4 growth stages from #egg, #larva, #nymph, and adult, feeding on a new host at each stage.
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View more: https://t.co/bJza0MHbuT
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#lymedisease #naturalscience #nature