The visible portion of the 13-foot-tall (4-meter-tall) Christmas tree isn't ancient, but its root system has been growing for 9,550 years, according to a team led by Leif Kullman, professor at UmeÃ¥ University's department of ecology and environmental science in Sweden. Enlarge Photo.
Here are the facts: 1  More than 100 million animals are reported killed by hunters each year.  The vast majority of species that are hunted -- waterfowl, upland birds, mourning doves, squirrels, raccoons, rabbits, crows, coyotes, etc. -- provide minimal sustenance and do not require population control.
Believe it or not, there are about 950,000 species of insects. No one knows for sure how many species of animals exist on Earth. In fact, some 10,000 species of animals are discovered each year, with over one and a half million species already described. Projections for the total number of species on Earth range from 2 million to 50 million.