Are there kangeroos in american zoos?

Have been intimidated by a roo. We were chasing them around one night on a motorbike (not to harm them) when one stopped and turned around. We drove slowly closer to it and it just got up on it legs and stood there and stared at us. It was a big male one but we eventually managed to scare it away. Almsot ended up having a big roo get us. They kick hard! There are a lot of them all around the country.