Yes, we put sniff butt on queue.

Bart Weetjens How I taught rats to sniff out land mines

So I said to a nurse, 'Did you know that the U.S. army is training bumblebees to sniff out explosives?' When I read my medical notes, I saw they'd written 'Believes bees can sniff out explosives.' He said, You know, they're always looking out for non verbal clues to my mental state.

I subscribe to New Scientist, and recently it had an article about how the U.S. Army was training bumblebees to sniff out explosives.

MUMBAI Every day, a small Japanese jet brings another 60 businessmen from Tokyo to sniff out new commercial opportunities in Mumbai and the heart of the Indian economy.

And sometimes they'll resort to what's known as the burn and sniff technique where they'll burn the plastic and smell the fumes to try to determine the type of plastic.

At TEDxRotterdam, Bart Weetjens talks about his extraordinary project training rats to sniff out land mines. He shows clips of his hero rats in action, and previews his work's next phase teaching them to turn up tuberculosis in the lab.