Comb teeth and stone tool: what they have in common

1. Step 1. Comb teeth — is part of — Comb. A row of teeth.
2. Step 2. Comb — is made of — Bone. Ancient combs were carved from bone and antler.
3. Step 3. Bone — is material for — Needle. The first needles with an eye were carved from bone.
4. Step 4. Needle — evolved from — Stone tool. Bone needles with an eye are part of the Palaeolithic toolkit.

Open Evothings