* Coyotes
* Wolves
* Mountain lions
* Bears
* Bobcats
* Foxes
* Raccoons
* Birds of prey
Other animals:
* Dogs
* Cats
* Snakes
* Alligators
* Crocodiles
Diseases:
* Swine flu
* African swine fever
* Classical swine fever
* Porcine reproductive and respiratory syndrome
* Erysipelas
* Leptospirosis
* Salmonellosis
* E. coli infection
Environmental hazards:
* Poisonous plants
* Toxic chemicals
* Drowning
* Falling
* Electrocution
* Heatstroke
* Hypothermia