Dear Jonathan

Our world is full of weird and wonderful creatures, many of which amaze scientists and non-scientists, alike. But is it true that a living tortoise could have started its life in the first half of the 19th Century?

Meet Jonathan, Myrtle and Fredrika, three of five giant tortoises who live on St Helena. Their shy friends David and Emma are hiding in the rough.

"He is virtually blind from cataracts, has no sense of smell - but his hearing is good," Joe tells me. At 182, Jonathan may be the oldest living land creature.

More information: http://t.co/QjQRnO2kXx