Frieze week is almost upon us which means it's that time of year again as the annual Serpentine Marathon beckons too. This year the two-day long, live presentation series takes on the theme of 'Extinction', working with radical creatives like Ed Atkins, Yoko Ono and Gustav Metzger to create a unique spin. The gallery have also teamed up with GIF gallery 15 Folds for an open call-out to have your 'extinction'-themed glitch-art exhibited at the marathon. "On the internet everything lasts forever", explained 15 Folds' Margot Bowman, "GIFs are a part of this promise by bucking the conventions of beginning, middle and end and breaking the standard rules of time with their infinite loop”. Judged by Serpentine co-director, Hans Ulrich Obrist and 15 Folds, 15 GIFs will appear at the 15 Folds gallery during the Marathon. For the chance to have yours on show just submit an 'extinction'-themed gif here and get some inspiration from our gallery (submissions close on the 24th).