Naturally if there are saber-toothed tigers and velociraptors loose in Prospect Park, there must be a ninja and unicorns, too! We discovered some more photographs of signs alerting park goers about the new measures to protect the fragile soil. It's turns out it's the work of the Non-Traditional Park Preservation Task Force. They say, "We love Prospect Park and the Ravine, newly restored after years of abuse. The topsoil can’t compete with folks hopping the fence and tromping on the plant life. We’d love to see the area stay beautiful for years to come!"