They are sometimes visible by remaining snow patches in spring. (sciencedaily.com)
A melting snow patch in Greenland has revealed what could be the oldest fossilized evidence of life on Earth. (sciencenews.org)
The NOC's robot - sub, Autosub6000, used seafloor photographs to create the first landscape - scale map of marine snow patches in addition to a map of the abundance of life on the sea - floor (also known as biomass). (sciencedaily.com)