The series finale of Adventure Time leaves its audience to meditate on a space-like world populated by “lumpy” people, sentient confectioneries and a vampire queen. What is it that has made these characters and their stories so loveable and resonant? Yi Feng gives his take on the eight-year, ten-season children’s cartoon.

This article explores recent scientific discoveries about the highly evolved colour-changing skin cells and eye structures of the octopus and cuttlefish to illustrate how they perceive and manipulate colour.