There is increasing interest in the community in astrobiology and in the search for Earth-like planets. The SKA has enormous potential for finding evidence of extra-solar terrestrial planets and of other life like us. At 20 GHz, the SKA will provide thermal imaging at 0.15-AU resolution out to a distance of 150 pc, encompassing many of the best-studied Galactic star forming regions. Such observations will allow the process of terrestrial planet formation, evolving on timescales of months, to be studied. For the first time with the SKA, we will have the capability of detecting leakage radiation from ETI transmitters out to a few hundred parsecs, involving of order a million solar type stars. Finally, the SKA will have the resolution and sensitivity to study the J=1-0 transitions of amino acids and other complex carbon bio-molecules, and to follow their progress from molecular clouds to proto-planets.