According to the Animals (Scientific Procedures) Act, which of the following is considered a protected animal?

The Animals (Scientific Procedures) Act protects all living vertebrates, which includes mammals, birds, reptiles, amphibians, and fish. This comprehensive protection is in place because vertebrates are recognized to have complex nervous systems, which are associated with the ability to experience pain and suffering. The Act aims to ensure that the use of these animals in scientific research is regulated and that humane treatment is maintained.

The inclusion of all living vertebrates under this legislation means that researchers must adhere to stringent ethical standards when working with these animals. This protection does not extend to invertebrates, which is why those are not included in the definition of protected animals under this Act. The other options fail to encompass the full range of protected species as defined by the legislation, focusing instead on more limited categories that do not reflect the comprehensive nature of the law.