"The body of this individual will react to testosterone, because the fact that someone has a high level of testosterone, but for example a genetic mutation that makes the cells not react to this testosterone, will make this development rather tend towards female. "

"The IOC decided that to compete in women's competitions or in mixed categories as a woman, one will need to have one test in their lifetime that shows that there is no SRY gene in their genome, that this gene is not present. "

"Eggs are super strong. Last updated: 23.04.2011 00:02. It's incredible, but just 3 raw chicken eggs can support the weight of an adult human. Due to its shape and purpose, which is to protect the embryo, an egg is an extremely durable structure – remind physicists from the University of Silesia in Katowice. An egg shell is a composite material, but primarily calcium carbonate, "nature's ceramic."1 We assume the ultimate compressional strength of the material to be about the same as bone (which is mostly calcium phosphate, but never mind): 170x106 N/m2. This egg shell constitutes of 95% of calcium carbonate which is the strength giving material, with some number of organic proteins and moisture content. "

"In pelicans flying in a V-formation, a heart rate 11% lower was observed compared to a solitary flying pelican. "