According to the PHS Policy, the definition of animal includes which of the following?

The definition of "animal" according to the Public Health Service (PHS) Policy specifically encompasses "any live vertebrate animal." This definition is pivotal in establishing regulations and guidelines around the use of animals in research. It ensures that a broad category of vertebrate species, including mammals, birds, reptiles, amphibians, and fish, are included under the policy's protections.

This inclusive categorization is essential for ensuring the ethical treatment of a wide array of species in research settings. The PHS Policy applies to federally funded research involving these animals, promoting a standard of care and humane treatment.

In situations where other options suggest limitations on the definition of animal, the correct definition as per the PHS Policy highlights the significance of including all live vertebrate animals, thereby encompassing a comprehensive range of species that researchers must consider when conducting studies.