What is an endangered species?

An endangered species is defined as a species that is at serious risk of extinction. This designation indicates that the population size of the species has decreased significantly or is expected to decline in the near future. Factors contributing to a species becoming endangered can include habitat loss, poaching, climate change, and invasive species, among others. Conservation efforts often focus on these species to prevent their extinction and to promote recovery.

In contrast, the other options describe conditions that do not align with the definition of an endangered species. For instance, a species that is thriving and expanding its habitat indicates a healthy population and is typically not considered endangered. Similarly, having no predators or being adaptable to multiple habitats often suggests a stable or resilient species rather than one at risk. The essence of being an endangered species lies in the threat to its survival and the urgency for protective measures.