Original: One such advancement was ADAM, stem cells harvested from a previously unknown species of sea slug, which were discovered by Dr. Bridgette Tenenbaum to have the ability to regenerate damaged tissue and rewrite the human genome.
Simplified: Scientists also made ADAM, stem cells harvested from an unknown species of sea slug, which were discovered by Dr. Bridgette Tenenbaum to have the ability to heal damaged tissue and rewrite the human genome.