Zoo's new bloodthirsty helpers?

Zookeepers in England are using blood-sucking insects to collect blood samples from zoo animals, according to the linkurl:BBC.;http://news.bbc.co.uk/2/hi/uk_news/england/london/7425073.stm The bugs may allow routine health checks without the use of anesthetics. Rather than needles and linkurl:syringes,;http://www.the-scientist.com/article/display/19281/ veterinary officers at the London and Whipsnade Zoos are taking advantage of the voracious appetite of South American linkurl:kissing bugs;http