The remains were found of an extinct tropical tortoise that is believed to be 1000 years old. They found DNA that's still intact. Here's a link to the article.
http://news.ufl.edu/articles/2017/02/extinct-tortoise-yields-oldest-tropical-dna.php
http://news.ufl.edu/articles/2017/02/extinct-tortoise-yields-oldest-tropical-dna.php