apopo.org

QNDna TIL that "Hero Rats" can be used as a failsafe to check for tuberculosis at a rate of 100 samples per twenty minutes, a task that takes human microbiologist four days.
oB8yE TIL about APOPO - an organization that researches and trains rats to detect land mines and tuberculosis. These rats save lives!
rRGD4 TIL that rats have been used to locate over 100k landmines and explosives. They're effective because they're too light to trip the mines.