Atlantic Bobtail Squid |
This pear-shaped squid is akin to a wizard with its own invisibility cloak due to a symbiotic relationship with bioluminescent bacteria that lives in a special light organ in its mantle. When the squid leaves the safety of the seafloor to hunt at night, the bacteria hides the squid’s silhouette by matching the amount of light hitting the top of its mantle—making it virtually invisible in moonlit waters when viewed from below. In return, the small squid provides the bacteria with a sugar and amino acid solution to feed on.
Materials science experts in the U.S. Air Force have studied the symbiotic relationship between the squid and its bacteria to see if the reflective qualities could be used to improve their aircraft camouflage.