We've all heard about the flightless bird and his incredible speed, but this video shows us just what that speed looks when an ostrich decides to chase after some cyclists in South Africa. The Animal Fact Guide says these birds are the worlds largest, weighing around 320 pounds and can often spring at 43mph.

The poster of this video describes:

We came down to South Africa for the Cape Argus Tour. It is the biggest cycling event in the world, probably...
Suddenly, I spotted a white ostrich on my left, then this beast jumped on the road from the right and started

chasing my friends! It was a little scary at first, but then I thought I gonna fell of my bike from laughter. The ostrich didn't have any problem to keep up at 50km/h and apparently they do 70km/h with no sweat.