Here's why:
* Large population: Red kangaroos are incredibly numerous, with an estimated population of over 45 million individuals.
* Adaptability: They are well-adapted to their environment and are not easily wiped out by factors like car collisions.
* Management: Australian authorities manage kangaroo populations through culling and other methods, ensuring their numbers are sustainable.
While car collisions are unfortunate and can be fatal for individual kangaroos, they are not the primary cause of decline for the species.