Technology
Follow the herd
Christmas is over – at least as far as reindeer are concerned. Herders in Finland now face the challenge of keeping track of their animals as they roam Lapland’s vast snow-covered forests in sub-zero temperatures. But that task is about to get easier thanks to a new gadget: internet-enabled collars that will allow herders to see the location of their reindeer on a mobile-phone app. The collars, which will form one of the world’s northernmost “Internet of Things” networks, will also help herders find the corpses of dead reindeer (5,000 per year are killed by predators such as wolverines and lynx) so that they can claim compensation from the Finnish government. The trackers, which will be worn by the herd’s alpha female, are likely to cost about €90. Santa might be adding them to his Christmas list next year.