[Carina writes...] There are over 22,000 species of trees in the American tropical forests. In just 15 patches of forest, each about the size of two football fields, scientists catalogued over 1,000 tree species in Yasuní National Park in Ecuador, more than the 620 tree species native to all of the US and Canada.
These are the numbers that blow my mind and get me excited about trying to understand the origins of biodiversity, especially in the tropics. I have good company— I think about 30% of ecologists and evolutionary biologists start talks with a slide full of colorful, beautiful organisms, and say that the ultimate goal of their research is to understand where all this diversity comes from.