In Australia we have the most amazing wildlife in the world.
They are most under threat by pets: cats and dogs and road users.
People need to be more aware where and what their pets are doing and report incidents ASAP if their cat or dog has attacked. a possum, Koala, snake, Echidna or other native wildlife. So these critters have a better chance of surviving.
If you hit something in you car STOP and check to see if it's dead and if it has live joeys in the pouch, which can still be saved even if the mother is dead.
Don't just think the next person will do it.
I have become a wildlife carer to help the Australian wildlife where I can.