Competition

There are approximately 16,000 tree species in the Amazon rainforest. However, 227 “hyperdominant” species (1.4% of the total) are so common that they account for half of all the trees. Of the 16,000 species, 11,000 only account for 0.12% of trees. Why? In nature, as well as in human society, we are often faced with...
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In 1985, the US Army selected the Beretta M9 (a version of the 92FS) as its standard issue side arm. On January 19, the Army ended that 30-year relationship when it chose the Sig Sauer Model P320 as its new weapon of choice. If you’re keeping score, that 10-year contract is worth $580 million. The...
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