One of my favorite places here in San Diego is a beautiful, expansive park called Balboa park that features awe inspiring architecture, a beautiful atrium/garden, and a gorgeous koi pond/ reflecting pool. It was in this koi pond (one of my favorite places to go) that I witnessed a small turtle kill and eat an entire rat by taking relatively small bites out of it.
It may not have been too gory but I will never, ever be able to get that image out of my mind.