- Aurora borealis
- Infinity and the absolute
- The limbic brain and neocortex
- Dung beetles and cockroaches
- Locusts' behavior pattens
- The biological perspective
- The human body
- Progeria
- Orca whales
- Outer space
- Time travel
may 4 2009 ∞
dec 5 2010 +
dec 5 2010 +