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Short Video: Butterfly Emerging

by Pearson
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This time-lapse movie shows the metamorphosis of a caterpillar into a monarch butterfly. The caterpillar is the feeding larval stage, and spends its time eating and growing, molting as it grows. After it molts several times, the larva develops into a pupa. Pockets of previously inactive cells in the pupa now begin dividing and differentiating into adult structures, while the larval structures and tissues are broken down. The most obvious adult structures are the wings, with their distinctive pattern, which you can see through the increasingly transparent pupal cuticle. Finally, the adult emerges, and fluid is pumped into the wing veins, allowing them to support the wings. The adult will fly off to carry out the functions for which it is specialized: dispersal and reproduction. The adult stage derives much of its nourishment from the calories eaten and stored by the feeding larval stage. Credit: National Geographic.
This time-lapse movie shows the metamorphosis of a caterpillar into a monarch butterfly. The caterpillar is the feeding larval stage, and spends its time eating and growing, molting as it grows. After it molts several times, the larva develops into a pupa. Pockets of previously inactive cells in the pupa now begin dividing and differentiating into adult structures, while the larval structures and tissues are broken down. The most obvious adult structures are the wings, with their distinctive pattern, which you can see through the increasingly transparent pupal cuticle. Finally, the adult emerges, and fluid is pumped into the wing veins, allowing them to support the wings. The adult will fly off to carry out the functions for which it is specialized: dispersal and reproduction. The adult stage derives much of its nourishment from the calories eaten and stored by the feeding larval stage. Credit: National Geographic.