Brains

A book is a mirror: if an ape looks into it, an apostle is hardly likely to look back out - Georg C. Lichtenberg.

Its said that the size of the brain compared to it's body helps understand the evolutionary advancement of the creatures under study. As the mind consumes ~30% of the total energy required by the body to survive, its development is highly prioritized and efficiently organized. Its complexity is only now being understood using advanced tools like the Magnetic Resonance Imaging and is already helping scientist's to come up with hi technology gadgets which detect brain impulses and map them accurately in an attempt to influence it's functions.

Its a strange contradiction that mind power is helping discover the brains true power and potential.

Btw: amongst mammals, only dolphins have the apparently advanced minds to recognize themselves in a mirror. This proves the existance of self consciousness or awareness of one's own self. This is considered to be the primary development giving rise to the understanding of social behaviour and cooperation amongst this pack hunter, who apart from homo-sapiens is the only mammal which enjoys sex for reasons other than procreation.