http://news.bbc.co.uk/1/hi/sci/tech/7868588.stm
The discovery of fossilised remains belonging to the world's largest snake has been reported in Nature journal.
Titanoboa was 13m (42ft) long - about the length of a bus - and lived in the rainforest of north-east Colombia 58-60 million years ago.
The snake was so wide it would have reached up to a person's hips, say researchers, who have estimated that it weighed more than a tonne.
According to the report this thing might have eaten crocodiles and alligators!
Anyway one of the most interesting things is that the size of this snake can tell scientists the average temperature in it's native environment. The higher the temperature the larger cold-blooded animals can get.
The weather 59 million years ago in Columbia - skorchio!