Zoos are becoming facsimiles - or perhaps caricatures - of how animals once were in their natural habitat. If the right policies toward nature were pursued, we would need no zoos at all.
There's been 38 expeditions to the ISS as of 2013. An expedition can last up to six months. Early expeditions had 3 person crews, this was reduced to 2 person crews for safety, however today crew numbers regularly reach 6 people.
