However, fish can either synthesize EPA from fatty acids precursors found in their alimentation or obtain it from the algae they consume. It is available to humans from some non-animal sources (e.g. commercially, from "Yarrowia lipolytica", and from microalgae such as "Monodus subterraneus", "Chlorella minutissima" and "Phaeodactylum tricornutum", which are being developed as a commercial source). EPA is not usually found in higher plants, but it has been reported in trace amounts in purslane. In 2013, it was reported that a genetically modified form of the plant camelina produced significant amounts of EPA.