Today on our way to work, we saw something pretty wild. Two male giraffes were walking on either side of a rhino fence. One decided to cross at one of the gaps in the fence. It took several awkward steps through the posts and across the rocks. Meantime, the other giraffe came closer to meet it. Then it reared up to face its adversary.

The first giraffe — the one crossing the fence — then also reared up and struck the second giraffe, which literally went over backwards, neck first. It landed very awkwardly and then lay totally still.

By coincidence, in the car with us was the retired Head Vet from the Denver Zoo, Dave [...]