L

food chain, 12 identifying, 67 seven-spotted, 58, 67 species, 66

leech ancient uses, 90 body, 91

European medicinal, 90-91 medicinal, 17, 90 mouth, 90 movement, 91 saliva, 91 types, 90

life-form, first, 6

lobster American, 14 anatomy, 41 color, 38 environment, 41 exoskeleton, 38-39 movement, 41 pincers, 41 shape change, 38

locust, 70 antennae, 55 best control, 89 breeding zones, 89 desert, 88 history, 89 mouth, 58-59 plagues, 88-89 rainfall, 89

luminescence, 42

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