Biodiversity encompasses the variety of life on Earth, including genetic diversity, species diversity, and ecosystem diversity.

Habitat loss, climate change, and pollution are all major threats to biodiversity.

Mass extinction refers to the rapid disappearance of a large number of species over a relatively short period of time.

Sea otters, gray wolves, and coral are all examples of keystone species, which play a disproportionately large role in their ecosystems relative to their abundance.

Conservation, preservation, and restoration are all aspects of the process of protecting and managing natural resources for long-term sustainability.

National parks, wildlife sanctuaries, and marine protected areas are all examples of protected areas, which are designated for the conservation of biodiversity and natural resources.

Reintroduction refers to the process of intentionally releasing individuals of a species into an area where it once existed but has become extinct.

The recovery of the bald eagle population, the reintroduction of the giant panda, and the establishment of marine protected areas are all examples of conservation success stories.

Mitigation refers to the process of reducing or eliminating the negative impacts of human activities on the environment.

Reducing greenhouse gas emissions, protecting forests, and developing renewable energy sources are all examples of mitigation strategies.

Resilience refers to the ability of an ecosystem to recover from disturbances and maintain its structure and function.

Coral reefs, rainforests, and grasslands are all examples of ecosystems that are resilient to disturbances.

Environmental education, conservation education, and sustainability education are all aspects of the process of educating people about the importance of biodiversity and conservation.

School field trips, public lectures, and community workshops are all examples of environmental education programs.

Collaboration, cooperation, and partnership are all aspects of the process of working together to protect and conserve biodiversity.