Oliver, a little clarification.
OliverChant writes:
When the pupae (caterpillars) were fed leaves coated with coal soot the wings of the adults were darker.
Caterpillars are the
larval stage. Pupae is the metamorphosis stage between larvae and adult, and pupae do not feed.
Maybe you should study more than one source on a subject before posting as if you know what you are talking about.
Tactimatically speaking, the molecubes are out of alignment. -- S.Valley
What if Eleanor Roosevelt had wings? -- Monty Python
You can't build a Time Machine without Weird Optics -- S. Valley