It's not every day that you get to celebrate someone's 190th birthday; in fact, we're fairly certain it's never happened before. That is, until this past weekend, when Jonathan — the world's oldest living land mammal and the oldest tortoise in recorded history — turned 190. The South Atlantic island of St. Helena, where Jonathan has lived since 1882, has been … [Read more...] about Jonathan, The World’s Oldest Tortoise And The Oldest Living Land Mammal, Turns 190 Today