Watch yourself out there mate ...
http://www.bbc.co.uk/news/magazine-17544885
http://www.bbc.co.uk/news/magazine-17544885
Around 58 million years ago, a monstrous snake slithered out of the swampy jungles of South America and began a reign of terror.
Weighing more than a tonne and measuring 14m (approximately 50ft) the giant reptile could swallow a whole crocodile without showing a bulge.