Εγκέφαλος

http://thebrain.mcgill.ca/flash/d/d_05/d_05_cr/d_05_cr_her/d_05_cr_her.html

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3973910/

https://www.newscientist.com/article/mg21128311.800-a-brief-history-of-the-brain/

http://mentalfloss.com/article/70306/tracing-evolution-human-brain-through-casts-inner-skull