Furthermore, the squalid, cramped quarters that encourage diseases to propagate among many animal populations are actually the residental choice for insects.
此外，肮脏、拥挤的住所促进疾病在许多动物种群中扩散，这实际上是昆虫对居住地方的选择。
2
Medical research often makes use of the forest's plant and animal life, and the destruction of such species could prevent researchers from finding cures for certain diseases.
医学研究通常利用森林中的动植物，毁坏这些物种可能会令研究人员找不到某些疾病的治疗药物。
3
They play a vital role as main control measures to assure meat safety and of course to identify and monitor animaldiseases.