Harris, Sally L.2013-05-062013-05-062003-06-11http://hdl.handle.net/10919/20478Some caterpillars can adjust the color of their chrysalids, or pupae, from brown to green to camouflage them in their environment, so it's no wonder butterflies have evolved to mimic toxic butterflies to save themselves from predators.text/htmlIn CopyrightPress releaseVirginia Tech. University Relations