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Health & Fitness

First monarch caterpillar emerges

The first caterpillar (larva) emerges from the eggs that a monarch butterfly left on the milkweed in our garden.

We decided to raise some of them inside, which greatly increases their chance of surviving. We found 13 eggs, and carefully brought them inside on Thursday. By Saturday some of the eggs had lost their yellowish color, now appearing grayish-white with darker shading inside (the caterpillar's skin has formed and is showing through the egg, which is actually translucent). I posted two photos here, they're extreme closeups, remember that the egg is about the size of the head of a pin.

And voila! By Saturday evening the first tiny caterpillar ate its way out of its egg. The newly-hatched larva is a little more than a millimeter long, and has a gray-white body with a shiny black head.  You can see its egg to the right in the photographs. The tiny caterpillar is exploring and eating the milkweed.

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I just checked, and more of the caterpillars are emerging, so hang on for more photos!  Click here to see my photos of the entire life cycle of the monarch butterfly, which I took in 2009, the last time we found eggs on the milkweed in our garden. 

  with great telephoto shots taken by photographer Doug Donaldson of the monarchs clustering on the eucalyptus trees. 

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