In addition, they appear to self-repair wherever Tiberium is present. Scrin Harvesters, like many of their vehicles, are bio-mechanical constructs that hover and are able to absorb Tiberium through a 'mouth', with the aid of 'claws' to bring the crystal closer.
When the Scrin arrived on Earth during the Third Tiberium War, they brought their own harvesting technology with them.
