Interesting news story quoted from BBC News:
Tapeworm evolution revealed
By Dr David Whitehouse
BBC News Online science editor
Humans gave tapeworms to cows and pigs - not the other way around as was thought.
This conclusion is based on a new study of the characteristics, lifestyle and genetic evolution of tapeworms.
The research reveals that the three species of tapeworm that infect humans have been bothering us for millions of years. When modern man emigrated from Africa in the past million years or so, he took the tapeworm with him.
Researchers believe that an improved understanding of the origins of tapeworms will help them combat the diseases the parasites cause….
The BBC Story is here:
http://news.bbc.co.uk/1/hi/sci/tech/2040756.stm
