Earthworms: Underground Engineers
These humble diggers transform lifeless dirt into fertile soil by breaking down organic waste and creating channels for water and air. They’ve already shown promise in Mars soil simulants mixed with organic matter. Earthworms process amazing amounts of material daily – up to 10mg per gram of body weight! Their biggest challenge? Mars soil contains toxic perchlorates that must be removed first, but with the right conditions, these wrigglers could revolutionize Martian farming.