Humans have not been able to make themselves seem invisible yet, but our species just got closer — at least in a petri dish. Scientists at UC Irvine have succeeded at genetically engineering human cells to express the light-scattering properties that camouflage squid (like the giant squid above), cuttlefish and octopi so well that predators mistake them for rocks or seaweed. When proteins called reflectins were taken from a squid and introduced to embryonic human kidney cells, the cells were able to blend into their backgrounds in the same surreal way a squid can. Read More