A recent BBC documentary showed how intelligent octopuses are: they can use tools, solve puzzles and pass memory tests. But how ‘human’ are octopuses, and how ‘human’ are other animals? Recent scientific studies shed new light on what animals think and feel and are re-writing our relationship with them.

Recently the Indian Army declared it had found footprints left by a Yeti. The claim renewed the debate over the possible existence of this legendary creature. Despite the lack of truly convincing evidence, belief in the Yeti, as well as in the American Bigfoot, is widespread and the reason for this might be more than simple scientific curiosity.

On April 22, Earth Day was celebrated in more than 200 countries around the world. This yearly event was first held in the US in 1970. Earth Day wants to promote the protection of the environment. Its organizers say that we all have to act, and act now. We stand on the edge of environmental disaster and what is at stake is our very survival.