The early indigenous Sami opposition at the beginning of the 1900s was not just composed by individual voices on limited political and cultural issues. They challenged established policies and conceptions, with partly alternative social analyses.
The hummingbird’s super-fast wing beats are among the most energy-intensive movements in the animal kingdom. Still, the birds can fly 4,000 metres above sea level, where there is very little oxygen. Scientists have now figured out how this is possible.