Black Swallowtail Caterpillar Not Happy!
Hi,
Thanks to your site I was not alarmed when I disturbed this caterpillar. I had already identified him & thought you’d like to see him in action. Warm regards,
Donna
PS He put out quite a stink as well!

Hi Donna,
In the event some of our readers don’t know what you are talking about, we should inform them that Swallowtail Caterpillars have a fleshy organ that resembles horns that is normally retracted, but can be everted when the caterpillar is disturbed. The organ emits an odor that some predators, and you as well, find offensive.

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