North America's only marsupial! Show your support for these unsung heroes in the fight against ticks and Lyme Disease. 
 
Opossums, sometimes referred to just as possums, are a benefit to ecosystems and a healthy environment beyond eradicating ticks.  They will catch and eat cockroaches, rats and mice – in addition to consuming dead animals of all types. Opossums are also resistant to snake venom and actually prey on snakes, including venomous species such as copperheads and rattlesnakes. Having opossums around can minimize chances of encountering venomous species close to your home. 
Source: National Wildlife Fund