Butterflies anchor cocoons with silk Velcro and seat-belts

A chrysalis needs to be perfect when a caterpillar or silkworm prepares to transform from pupae to winged adults. Since the insect can’t emerge until it has completely matured, any overlooked structural flaws or weaknesses may prove fatal for them. But just as important is a chrysalis’ ability to remain anchored in place—and according to […]
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