Throughout the world, places that have been involved in war and/or civil
strife often have large minefields that still need clearing. In 2013, it was estimated that there was a global average of around nine mine-related deaths every day. The situation is especially dire in Africa.
Typically, clearing a minefield involves men in body armor walking in very
precise lines with metal detectors. Anything (from a rusty nail to an old ammo cartridge) that sets the detectors off must be investigated before moving on. A new method of bomb detection using rats, however, is flipping this process on its head.
Belgian NGO called APOPO has developed a way to train African pouched rats (named for the storage pouch in their cheeks) to sniff out bombs quickly and safely.
They used this rat because it has an incredibly fine-tuned sense of smell and a long lifespan
(8-9 years) to yield returns on the nine months of training they undergo.
They're called Hero Rats, and NOT ONE
has died in the line of duty since the
program started in 1997.
The average mine requires 5 kg (roughly 11 pounds)
of weight to trigger an explosion,
but even the biggest of these rats
are only around 1.5 kg (3.3 pounds).
Since they're trained to sniff out explosives exclusively,
they aren't distracted by other metal objects
the way human minesweepers are.
They can effectively search 200 square meters
in less than 20 minutes.
A team of humans would need
around 25 hours to do the same job.
Since they're in the African sun a lot,
the Hero Rats get sunscreen to keep them
If a rat does get cancer,
it receives full medical treatment.
The rats are "paid" in avocados, peanuts,
bananas and other healthy treats.
After about 4-5 years on the job
(or whenever they lose interest in working),
they're allowed to retire.
Retirement consists of eating all the tasty fruit their little hero heart's desire.
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