Invertebrate minds: from spiders to octopuses

Contributor(s): Daria Zakharova, Professor Elli Leadbeater, Professor Jonathan Birch, Sam Beckbessinger | Human beings are part of a vast sentient world full of conscious creatures, and even those of us far away from centres of political power have immense influence over huge numbers of animal lives - influence which we can choose to exercise for good or ill.