Giant rats that can sniff out TB

yugasini By yugasini, 23rd Oct 2014 | Follow this author | RSS Feed | Short URL http://nut.bz/40ila0co/
Posted in Wikinut>Guides>Pets>Other




Scientists have trained the much-maligned rodent to detect tuberculosis much quicker than humans. What is it that makes a rat's sense of smell so much better than ours?

Giant Rates

Derided as dirty, dangerous and diseased, if there is one creature that tops the list of people's most hated animal, it is the rat. But rats are clever, and usually trainable. In Tanzania, they have been taught to detect patients with tuberculosis by detecting early signs in human saliva. What would take a human scientist a whole day to diagnose the disease takes a rat a mere seven minutes.

BBC Earth’s Extraordinary Animals series visited the social enterprise Apopo in Tanzania to see how the rats are trained, and discover what makes a rat's sense of smell so superior. A rat makes about eight sniffs a second compared with two for humans. Rats also smell in stereo, distinguishing two similar odours with one sniff. And around one in every 100 of a rat’s genes is involved with odour detection, compared with one in 1,000 humans.

Source:bbc.com

Tags

Bbc Earths Extraordinary Animals Series, Detecting, Discover, Giant Rats, Odours, Tanzania, Tuberculosis

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Comments

author avatar Nancy Czerwinski
23rd Oct 2014 (#)

Great article! Thanks for sharing.

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author avatar yugasini
24th Oct 2014 (#)

Thanks for the comment, have a nice day.

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author avatar AjaySinghChauhan
23rd Oct 2014 (#)

thanks for sharing it

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author avatar yugasini
24th Oct 2014 (#)

Thanks for the comment, have a nice day.

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author avatar Fern Mc Costigan
29th Oct 2014 (#)

Awesome post and interesting piece as well!

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author avatar yugasini
29th Oct 2014 (#)

Thanks for the comment, have a nice day.

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