What is zipper named for a bird's claw?

The term "zipper" is believed to be derived from the sound it makes when being fastened, resembling a "zip" sound. However, there is also a less common theory that connects the name to the shape of a bird's claw, as the interlocking teeth of the zipper resemble the sharp, gripping nature of a bird's talon. This connection, while not widely documented, highlights the functional design of the zipper that allows for secure closure similar to how a bird's claw grips.