Discover Top Posts Tagged with #gynandromorphs

Gynandromorph Butterfly

Male and female butterflies often have different colors or patterns. Gynandromorphs—part male, part female—show a mix of both.

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There are lobsters who are not only colored differently but half their body is male and half is female. They are known as gynandromorphs. – WTF Fun Facts

Source: https://www.researchgate.net/figure/Gynandromorphs-Fig1a-Lobster-yellow-male-on-the-right-hand-side-green-brown-female-on_fig6_233967450

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Half-male, half-female bird (gynandromorph) cardinal

This bird might look like a holiday ornament, but it is actually a rare half-female, half-male northern cardinal (Cardinalis cardinalis, pictured with female plumage on the left and male plumage on the right) spotted a few years ago in Rock Island, Illinois. Researchers have long known such split-sex “gynandromorphs” exist in insects, crustaceans, and birds. But scientists rarely get to extensively study a gynandromorph in the wild; most published observations cover just a day or so. Observers got to follow this bird, however, for more than 40 days between December 2008 and March 2010. They documented how it interacted with other birds and even how it responded to recorded calls. The results suggest being half-and-half carries consequences: The cardinal didn’t appear to have a mate, and observers never heard it sing, the researchers report this month in The Wilson Journal of Ornithology. On the other hand, it wasn’t “subjected to any unusual agonistic behaviors from other cardinals,” according to the paper. Intriguingly, another gynandromorph cardinal sighted briefly in 1969 had the opposite plumage, they note: the male’s bright red plumes on the right, the drabber female feathers on the left.