A dim liquid ejected for defense by most cephalopods, including the octopus and squid. Ink consists of very concentrated melanin. Artists have distinct mediums they use to build their artwork, with just one such common medium becoming ink. Ink pens, or dip pens, are usually applied to develop comprehensive https://ink-drawing-for-beginners14681.mybjjblog.com/the-ultimate-guide-to-ink-pen-drawing-techniques-48974470