What do sharks do when we’re not looking?

To answer this question, Murdoch University fish biologist Lauran Brewster attached accelerometers to the fins of 24 lemon sharks in the Bimini Islands, Bahamas to find out.

Similar to our wearable Fitbits, the accelerometer collects data about the sharks’ movements, which are then analysed using a statistical approach called machine learning. “Very basically, machine learning is a model that learns patterns in data and can be used to identify similar patterns in new data and make predictions from it,” said Brewster.

On 14 August 2012 Lex Warner was about to conduct a technical dive off the Scottish coast. He was diving a rebreather and bailout stages and whilst he was crossing the deck of the dive boat, he stumbled, fell forwards and landed heavily on the deck. He went down on his knees, then onto his hands, before rolling onto his side and finally onto his back. Having been helped back to his feet by the boat’s crew, Lex Warner was reported to have expressed frustration and annoyance at himself for falling.

Scientists at the University of Exeter studying rockpool prawns (Palaemon elegant) have discovered that they exhibit different personalities, and those that are "shy" tend to fare better when competing for food.

The findings of their study was published in Volume 140 of the journal Animal Behaviour.

In the study, the prawns, all taken from the Gyllyngvase beach in Falmouth, were tagged and tested on their level of boldness by placing them in an unfamiliar tank and observing how much they explored and ventured to the centre.