Genetic cancer sensors, and why crabs walk sideways

This month, a genetic sensor to self-destruct cancer cells, what fish with a gene mutation are revealing about brain blood vessel disease, evidence that hallucinogens like psilocybin put brain cells into a more plastic state to loosen the grip of depression, a new technique to spot the population immunity loopholes that flu might exploit, and why crabs walk sideways... Get the references and the transcripts for this programme from the Naked Scientists website