According to charity APOPO, the Cambodian animals are too light to set off the landmines and are very quick at finding them ...
Figure 3: A rabbit with a cylindrical neck collar made from anethesia-machine hollow tubing and covered with a colored elastic bandage. Figure 4: A rat with a caudally directed e-collar.
Restraint collars can provide an investigator with a ... Neale, R.J. Coprophagy in iron-deficient rats: II. 2 novel methods of prevention. Lab. Anim. 18(2), 119–124 (1984).