What is defined as a plant or animal species that is endangered of extinction under federal law?

The term that refers to a plant or animal species that is endangered of extinction under federal law is "endangered species." This classification is established by the Endangered Species Act (ESA), which aims to protect species that are at immediate risk of becoming extinct. The ESA provides guidelines for the conservation of these species and their habitats, ensuring that strict measures are taken to prevent their further decline.

Understanding the difference between "endangered" and other classifications is essential. For example, a "threatened species" refers to those that are likely to become endangered in the foreseeable future, indicating a less immediate risk compared to an endangered species. "Vulnerable species" often pertains to those that are at risk but not critically endangered, and "protected species" is a broader term that can encompass both endangered and threatened species under various laws but does not specifically denote the critical state of being on the verge of extinction. The specificity of the term "endangered species" emphasizes the urgency of conservation efforts needed to preserve these organisms.