The Caribbean reef squid Sepioteuthis sepioideacan changes colour to match its surroundings David Fleetham / Alamy
A packaging material inspired by squid skin that changes the way it absorbs heat when stretched could be used to keep takeaway meals at the right temperature.
Squids camouflage themselves using hundreds of cells called chromatophores, which contain sacs of pigment. The size of these sacs fluctuates according to the contraction and relaxation of their surrounding muscles, enabling squids to change colour according to the reflection of light off their surface.
Inspired by this contraction and relaxation, at the University of…
