"Double thumb," also known as thumb duplication or pre-axial polydactyly, is a congenital condition where a baby is born with two thumbs on one hand, either separate or fused, and is one of the more common congenital hand conditions.

Thank you Google A.I. overview. 

The A.I. overview feature is sometimes helpful but I think overall Google is terrible and their services are getting increasingly bad. Remember when It listed glue as an ingredient for pizza sauce? What a time to be alive. Have you ever gone past the first page of Google search results? 

Did you realize most of the first page is promoted content that is almost irrelevant to what you need to find? We are digital serfs being consumed by the rot economy. 

Anyway, enjoy these.