Squids are one of many animals capable of changing color when they feel threatened, frightened, or just need to be a little dressier, but while many animals can change color, almost none can do it as quickly as squid. It's long been a mystery to science just how squid send the instructions to the cells that change their pigmentation, called iridophores,
and how those cells respond to the stimuli so quickly. In an effort to find out what stimulates those cells, the DIY bio-hackers at Backyard Brains
teamed with resaerchers at the Woods Hole Oceanographic Institution.
Using a technique they had already tested by making a cockroach dance, the team attached an electrode to the squid's dorsal fin, allowing them to send electrical impulses into the animal.
The electrical impulses they chose to deliver? The Cypress Hill classic "Insane in the Brain