Aliens? Vegetables? Nope—they are myxomycetes, organisms that bridge the gap between the plant and animal kingdoms. Like mushrooms, they reproduce via spores, but they can actually move, hunt for prey, and seek out the ideal environment.
Myxomycetes move like massive amoebas or pulsating masses; their movement relies on microfibrils that closely resemble muscle fibers.
These "blobs" crawl at a speed of about one centimeter per hour. Engulfing bacteria, algae and other organic matter as they move. They digest their food and expel the waste along the way.