How Fast Is Amoeba?

Amoeba creep along at about 4 microns per second using pseudopods — extending blob-like protrusions of their own bodies forward, then flowing the rest of themselves into the new space. They quite literally pour themselves around.

Amoebas have no fixed shape — they constantly change body form by extending pseudopods into the surrounding water. This makes them functionally invisible to many simpler predators.

• 2× faster than bread rises
• 350,000× slower than a walking human