Sources: Six Reasons to Ride a Polar Bear to Work
"In addition to being magnificent murderbeasts, Polar bears are also endangered, so if you want to ride one to work I encourage you to go donate some benjamins to the World Wildlife Fund. If not we're all gonna get stuck riding horses, mules, bison, or some other shitty animal."
You can also visit Polar Bears International to learn more
about Polar Bears and how to contribute to their conservation.