Welcome to Eocene Park! Here you will see real live creatures from 50 million years ago. Creatures like the eohippus, the forerunner of today's horse!
An eohippus? WOW! What did you do? Get some of its DNA from fossilized mosquitoes and clone it and bring it to life?
Don't be silly. That stuff only happens in fantasy movies.
Oh.
No, we accelerated it to within a few miles an hour of the speed of light, and thanks to relativity, 50 million years had elapsed by the time it got back to earth.
Whatever. We have a lawyer with us. Can the eohippus eat him when he takes a dump?