User blog comment:Raul123alin/My theory about the origin of the titans/@comment-77.173.136.5-20140210145401/@comment-83.88.110.233-20140505153349

isn't it a better theory than the one on this site? i mean seriously?

The fact that most titans are active only during the day could mean that their skin is in fact coated with foto-voltaic cells(solar panels) and the energy is stored somewhere inside the body,possibly in the chest cavity.Also,as it was stated by Hanji Zoe,if I am not mistaken,Titans are too light for their size.A possible explanation for that would be the use of extremely advanced materials,possibly even nano machines to strengthen the molecular bonds,which could explain their regeneration capabilities.