Why do human fingers have different lengths - research
Research explains why human fingers have different lengths. Each finger performs its own function: the thumb and index finger pick up small objects, the middle finger reaches hard-to-reach places, and the ring finger and little finger support the grip. Finger length is determined by evolution, genes, and hormones, as well as heredity and environment. The hand combines strength and precision, which was necessary for survival and work.
The article explains why human fingers have different lengths, referencing an experiment and The Conversation publication. Each finger performs its own function: the thumb and index finger pick up small objects, the middle finger reaches hard-to-reach places, and the ring finger and little finger support the grip. The middle finger is the longest and serves as the central support of the hand. The index finger is distinguished by mobility and precision. The little finger supports the outer edge of the palm. The thumb is about 75% of the length of the index finger and can oppose other fingers, providing precision. Finger length is determined by evolution, genes, and hormones, as well as heredity and environment. The hand combines strength and precision, which was necessary for survival and work. Previously, "Kursor" wrote about the connection between finger length ratio and alcohol tendency.