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The parasites that regard humans as lunch
World Service,·4 episodes
Humans are vulnerable to three species of lice: head lice clothing lice and crab lice
28 Jul 1995,·13 mins
They not only steal a meal, but hitch a lift while they're doing it
03 Aug 1995,·13 mins
The leech carries its own anaesthetic so its prey isn't even aware it's feeding
10 Aug 1995,·13 mins
Facts and figures about the bloodsucking insect
06 Sep 1995,·13 mins
