Friday, June 25, 2010
In the land of curry
Monday, June 21, 2010
10 things you didn't know about Leeches!
Sri Lanka has about every different type of climate and terrain that you can imagine and we visited one of it's most diverse areas last weekend - the rainforest. Centuries ago the whole of the South West quarter of the island would have been covered in dense rainforest. Now only about 3 or 4 sections of it remain intact, the biggest of which is Sinharaja. It became a World heritage site about 30 years ago which, fortunately, stopped the logging.
8 of us woke up at 5am on Sunday morning and donned our long sleeved shirts, long trousers and, most important of all, our leech socks, and set out for about 1 hour to the edge of the Rainforest. Walking through the trees you expected to hear "Gabriel's Oboe" from the Mission playing in the background, but instead we were serenaded by the occasional motorbike driving through on the foot-wide path. There are some 22 villages within the forest and, despite regular petitions to the government for a road and bridge to be built further upstream, the only access they have is via the path into the forest.
Once we got off the main drag, things got much more foresty but, with it, came the leeches. I think if I had to go into George Orwell's Room 101, my worst thing would be leeches. They are the most tenaciously, skin creeping creatures you could meet. So here goes with 10 things you didn't know about leeches:
- Leeches detect you through skin oils, heat, blood or even the carbon dioxide you breathe out. Every 2-3 minutes we had to check our boots and leech socks to pick off the little blighters before they managed to get into your shoe.
- A leech has 32 brains - 31 more than humans!!
- A leech will gorge itself until it's full and then just drop off. It will drink up to five times it's own body weight in blood!
- Some barbers used to do surgery as well as cutting hair, and they used leeches. When a barber finished surgery, he would take the bloody cloth he'd use and wrap it around a pole to show passers by that he did surgery. This is the origin of the red and white swirled poles we still see today.
- Scientists are studying leech saliva. They believe that chemistry that the stops the blood from clotting when a leech bites you will soon be able to be used on humans to prevent heart attacks and strokes. Sarah, one of our party, suffered a bite near her shoulder which didn't stop bleeding for 24 hours!
- Hungry leeches were a problem for soldiers in 1799 who were marching from Egypt across the Sinai peninsula to Syria. The thirsty soldiers, drinking anything they could find, would drink leech-infested water. When the leeches attached to their mouths and throats, some died from blood loss, whilst others died from their throats swelling, filled with blood-filled leeches, thereby cutting off their air - horrible! We fortunately didn't have any fatalities within our group although 3 of the group were "attacked".
- Four or five large leeches can drain the life out of a rabbit in half an hour.
- The bite of a leech is painless due to it's own anaesthetic.
- Burning a leech is not supposed to be a good way to get rid of them as they vomit things into your blood due to the shock!
- The largest leech discovered measured 18 inches. The ones we encountered were little buggers but they couldn't half move!
Well, I hope you're all itching and feeling ghost leeches as much as I am. For a day after the trip I'd keeping having to check to make sure I hadn't missed one of the blighters. I can't say I'll rush to do the experience again. Because you were constantly checking your shoes and also having to look where you put your feet because the path was so uneven and slippery, the amount of animals and insects we saw was less than I'd expected. One of the highlights, though, was this Kangaroo Lizard which bounces as soon as a camera comes out just like its namesake (see picture). We also saw beautiful Doctor snails with bright pink, large shells, and some stunning butterflies. Our guide was extremely knowledgeable and would be able to last a series of "I'm a Celebrity, get me out of here" quite easily as he knew all the plants and what medicinal properties they each had.
I'm glad to say that I'm back on safe, leech-free land now, and things are going much better at work, which is great. There is certainly some interesting wildlife to deal with here, and that's just the Directors!! More about that another time.
I wish you all a leech-free week!