Carlo Cleans Up

Cuttlefish seem to be able to distinguish between large and small numbers, at least when it comes to food. Scientists let cuttlefish in the lab choose between two chambers containing different numbers of shrimps to eat. The animals consistently selected the chamber with more shrimps, regardless of whether there was a large or small difference in prey numbers. Cuttlefish can also distinguish between large and small number of plastic pollution which are highly lethal to marine animals. The world now produces more than 380 million tonnes of plastic every year, which could end up as pollutants, entering our natural environment and oceans.