What does this number measure?
Its orange wings edged with black make it recognisable. Displayed dimension: representative wingspan.
Compare the stated dimensions
The comparison uses the number in each fact sheet: altitude, height, diameter, length or distance, depending on the reference. Two values in metres do not necessarily describe the same property.
Source and limitations
Catalogue value to check against the source; not individually audited.
Naturalistic illustration of a monarch butterfly; anatomy, texture and coloration are interpreted, not photographic.