Which of the following is an ethical concern regarding random source animals?

• A. They could've been used as research subjects elsewhere
• B. They could've been pets previously
• C. They could've been bred specifically for experiments
• D. They could've been from random sources

Answer: (B)

When considering the ethics of using random-source animals, a key concern is that these animals could have been pets previously. The possibility that a creature once lived in a家庭 setting with an owner who formed a bond with it brings up sensitive moral questions about consent, the sanctity of the companion animal–owner relationship, and public perceptions of turning a beloved pet into a research subject. This reality can influence welfare expectations, as pets typically receive a different level of social and veterinary care before any transfer to a facility, and it can evoke public concern about the treatment and fate of animals that people once viewed as family members.

While other scenarios might describe practical or regulatory considerations (such as unknown health histories or the arbitrary origin of the animal), the pet history specifically highlights an ethical tension rooted in the human–animal relationship and the moral acceptability of rehoming a companion animal into research.