In May-August each year, giant Australian cuttlefish gather and mate over a narrow stretch of rocky coastline in South Australia. At their peak you see literally one cuttlefish per square metre.
Elusive and mysterious by nature, ordinary people are revealing the secrets of the UK’s octopuses.
Roughly 10 per cent of the population is left-handed, like President Barack Obama, seen here signing the guest book on Parliament Hill in Ottawa in June 2016.
THE CANADIAN PRESS/Justin Tang
Intentional actions by usually solitary octopuses improve a sandy site, allowing group living in ‘Octlantis’. But the buzz around the site grew quickly, creating some interesting interpretations.
Thomas Cronin, University of Maryland, Baltimore County
We’re used to thinking of our eyes detecting light as the foundation of our visual system. But what’s going on in other cells throughout the body that can detect light, too?
It’s not easy to tackle a live octopus - so many arms, all those suckers! But some bottlenose dolphins have found a way to defuse and eat these eight-armed sea creatures.
Monstrous, or just misunderstood?
National Oceanic and Atmospheric Administration
It may make sense for intelligent aliens to have two eyes and ears on one head, and to walk upright. But other particulars – including their colour – are more open to speculation.