Here's what National Geographic says -
Monarch Butterfly Range.
Today was a good case in point. Three Monarchs emerged. All perfect.
Here are their wingspan sizes -
- Male - wingspan 7.5cm
- Male - wingspan 9.5cm
- Female - wingspan 10.5cm
Today's small male was probably the smallest I have seen.
Dainty, yet quite perfect. Nature always gets it right, yes?