- It is estimated that there are 3-5 million Pit Bulls in the U.S.
http://www.examiner.com/article/pit-bulls-and-euthanasia-rates - Pit bull attacks in the U.S. have risen 773% between 2007-2014.
http://www.animals24-7.org/2015/01/03/773-rise-in-fatal-disfiguring-pit-bull-attacks-from-2007-to-2014/ - In the 10-year period from 2005 to 2014, pit bulls killed 203 Americans and accounted for 62% of the 326 total recorded deaths.
http://www.dogsbite.org/dog-bite-statistics.php - Each year, almost five million people are bitten or attacked by dogs in Canada and the United States. The Humane Society of Canada estimates someone suffers a dog bite in Canada every 60 seconds.
http://personalinjury.ca/dog-bites/ - In a 30-year study of dog attacks in Canada and the US, 3394 people were attacked by dogs in a fatal and disfiguring manner. 2113 or 60% of the attacks were by pit bulls and pit bull mixes.
http://www.dogsbite.org/dogsbite-newsroom-2012-30-year-summary-dog-attack-deaths-maimings.php - The frequency of pit bull attacks is so disproportionate that even if half of the attacks in the pit bull category were misattributed, or even if the pit bull category was split three ways, attacks by pit bulls and their closest relatives would still outnumber attacks by any other breed.
http://images.bimedia.net/documents/Dog+attack+stats+with+breed+2012.pdf - It is estimated that in only 4 months, pit bulls will kill the same number of people as Dobermans killed in the past 60 years.
http://news.nationalpost.com/full-comment/barbara-kay-pit-bull-bans-work - Pit bulls killed as many American people between 2013-2015 as black bears killed in the past 115 years.
http://www.dogsbite.org/dog-bite-statistics-fatalities.php
http://www.bear.org/website/bear-pages/black-bear/bears-a-humans/119-how-dangerous-are-black-bears.html - 48% of pit bull deaths in 2014 were family members
http://www.dogsbite.org/dog-bite-statistics-fatalities-2014.php - Pit bulls, well known to be aggressive to other animals, killed 95% of 15,000 dogs in the U.S. in 2014.
http://www.animals24-7.org/2015/01/27/how-many-other-animals-did-pit-bulls-kill-in-2014/
http://www.livescience.com/27145-are-pit-bulls-dangerous.html - In 1999, pit bulls were about 3% of the U.S. dog population, but accounted for 17% of shelter dog admissions. Since 2000, pit bulls have increased to about 5% of the U.S. dog population, but were about 25% of shelter dog admissions and 50% of the dogs killed in shelters during the 10 years ending in 2009.
http://banallpitbulls.blogspot.ca/2015_04_01_archive.html

Many pit bulls can easily jump a 6-8 foot fence