Endangered species | Definition, Causes, Examples, Facts . . . Endangered species, any species that is at risk of extinction because of a sudden rapid decrease in its population or a loss of its critical habitat Previously, any species of plant or animal that was threatened with extinction could be called an endangered species
Platypus - WWF Australia Platypuses are a flagship species, which means when we protect their habitat from landclearing and unnecessary infrastructure, we are also supporting healthy rivers and waterways, vital for the thousands of species that rely on freshwater habitats across their range You can help protect not only the platypus but thousands of other wildlife
Strong evidence shows Sixth Mass Extinction of global . . . The history of life on Earth has been marked five times by events of mass biodiversity extinction caused by extreme natural phenomena Today, many experts warn that a Sixth Mass Extinction crisis
Monarch Butterfly | Species | WWF - World Wildlife Fund Monarch butterflies embark on a marvelous migratory phenomenon They travel between 1,200 and 2,800 miles or more from the northeast United States, and southeast Canada to the mountain forests in central Mexico, where they find the right climate conditions to hibernate from the beginning of November
Guide to North American Birds | Audubon Explore more than 800 North American bird species, learn about their lives and habitats, and how climate change is impacting their ability to survive
Lists of invasive species - Wikipedia These are lists of invasive species by country or region A species is regarded as invasive if it has been introduced by human action to a location, area, or region where it did not previously occur naturally (i e , is not a native species), becomes capable of establishing a breeding population in the new location without further intervention by humans, and becomes a pest in the new location