Boliva The 'Tibet of South America', Bolivia is the highest of all South America's countries. But its landlocked position and mountain ranges also make it a country to find a flavour of what much of South America must once have been like. The region around La Paz is known as Little Bolivia where s...

Bacteria live almost everywhere, even where other forms of life can't. The only places' where they can't survive is in sanitized places. Some bacteria need oxygen to survive, and others don't need any. Also some can survive with both, but some can't survive wit...