Some species are hunted, and others are considered agricultural pests. Several species have been used as laboratory animals and some of the rarer ones have been used as flagship conservation species for habitat preservation.
1. Spiny rat (Proechimys semispinosus); 2. Amazon bamboo rat (Dactylomys dactylinus); 3. Armored rat (Hoplomys gymnurus); 4. Cerrado rat (Caterodon sulcidens); 5. Southern bamboo rat (Kannabateomys amblyonyx); 6. White-faced arboreal spiny rat (Echimys chrysurus); 7. Thin-spined porcupine (Chaetomys subspinosus); 8. Toro (Isothrix bistriata); 9. Montane bamboo rat (Olallamys albicauda). (Illustration by Barbara Duperron)
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