Waterbear is an oblique spaceship constructed by Brett Berger on December 28, 2014. It was the smallest (in terms of bounding box) known oblique spaceship, superseding parallel HBK, until the discovery of Sir Robin in March 2018. It is also the first discovered "fast" oblique spaceship in Conway's Game of Life.
The helix, fanout devices and syntheses for the helix were found by Ivan Fomichev. The base reaction consists of a crawler consisting of a Herschel running on a track of gliders. The Herschel consumes a southwest glider and emits two gliders, one southwest and the other southeast, every 79 generations. Interactions between neighboring tracks are used to create the necessary components to recreate the helix.