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.
Now to the figures. Itâs estimated that 108 million people were killed in wars throughout the 20th century with estimates for all of human history coming around 150 million to 1 billion. Some hard and fast numbers we do have for animal slaughter are from the USDA for 2013. In that year alone the united stated slaughtered 8.6 billion chickens. so we have: 7.6 billion more chickens were killed in a single year in a single country than all the humans who have ever died from war. And that is even going with the highest estimation of human deaths. G lobal chicken slaughter is estimated at 50 billion.