'The evolution of a large flexor pollicis muscle in this digit was key to early man's ability to use tools'
the thumb
EARLY MAN: The evolution of a large flexor pollicis muscle in this digit was key to early mans ability to use tools
The evolution of a large flexor pollicis muscle in this digit was key to early man's ability to use tools
The evolution of a large flexor pollicis muscle in this digit was key to early man's ability to use tools
EARLY MAN
the thumb
EARLY MAN