It’s a jumping spider called Portia, and it can count. The tiny spider has a brain that could fit on a pinhead, and apparently it counts its prey. Dr Fiona Cross and Emeritus Professor Robert Jackson, are both from the School of Biological Sciences at the University of Canterbury. And they’ve published a paper on the critter that was the cover for a new Royal Society special issue of Interface Focus. Fiona spends six months a year in Kenya but she’s back at home in New Zealand.