In the science news this week: a bleak outlook for coral reefs, a method for determining the plumage colour of birds around at the time of dinosaurs and how bright bugs could lead the way to new drugs. Plus, a Rubik's Cube challenge for octopuses...

In the science news this week: scientists match the cunning of the cold sore virus, endangered animals may be wiped out quicker than feared, and the biometric system that can pick up a penguin...

In the news this week: scientists believe the North pole ice may disappear completely, why Mars is a two-faced planet, 'crocodile language' is translated and a new use for stink bomb gas is discovered.