What type of species are at risk of extinction and listed for protection?

Endangered species are those that are at risk of extinction and are thus listed for protection under various environmental laws and regulations. These species face significant threats to their survival, such as habitat loss, poaching, climate change, and other environmental pressures. The designation of a species as "endangered" often comes with a range of protective measures, including habitat conservation efforts, restrictions on hunting or harvesting, and programs aimed at breeding and reintroducing the species into its natural habitat.

In contrast, invasive species are non-native species that can disrupt local ecosystems, while open-season species refer to wildlife that can be legally hunted during certain times of the year. Nuisance species typically refer to animals that may cause problems for humans, such as property damage or health concerns, but are not necessarily at risk of extinction. Understanding the classification of endangered species is vital for conservation efforts and for maintaining biodiversity.