Paleontologists will revisit a cave in North America that has numerous Pleistocene fossils. The Natural Trap Cave in Wyoming is more than 80 feet deep and 15 feet wide at the top. It is almost impossible to spot the hole until one is almost next to it. Over the last several thousand years many animals including mammoths, American Lions and short-faced bears were not lucky to notice the hole until they were plunging into it.
The United States Bureau of Land Management will soon reopen the metal grate covering the hole to offer scientists a glimpse onto the kind of animals that roamed around Bighorn Mountains some 25,000 years ago.