what are the names of the five mass extinctions?
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['Ordovician-silurian Extinction: 440 million years ago.', 'Devonian Extinction: 365 million years ago.', 'Permian-triassic Extinction: 250 million years ago.', 'Triassic-jurassic Extinction: 210 million years ago.', 'Cretaceous-tertiary Extinction: 65 Million Years Ago.']
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['Tarbosaurus. [02:09]', 'Alice Andesaurus. [02:30]', 'Allosaurus. [03:13]', 'Tyrannosaurus Rex Gen. [03:29]', 'Tyrannosaurus Rex. [04:04]']
162738
['1.1 Avalanches and landslides.', '1.2 Earthquakes.', '1.3 Sinkholes.', '1.4 Volcanic eruptions.']
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Since the 16th century, humans have driven at least 680 vertebrate species to extinction, including the Pinta Island tortoise. The last known animal of this subspecies, a giant tortoise nicknamed Lonesome George, died at the Galapagos National Park in Ecuador in 2012.
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There are five major causes of extinction: habitat loss, an introduced species, pollution, population growth, and overconsumption. Through the activity, students will create a list of reasons why animals can become extinct.
1013656
What are the two types of extinction? Background extinctions occur continuously at a very low rate and mass extinctions are rare but much more intense.
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Climate change is accelerating the sixth extinction World biodiversity has declined alarmingly in half a century: more than 25,000 species, almost a third of those known, are in danger of disappearing.
844855
The animals called Dinosaurs which lived on this earth in ancient times have become extinct a long time ago. Some of the examples of animals are Dinosaur, Dodo, Cave lion, Caspian tiger, Irish deer. The species which are facing the risk of extinction are called endangered species.
1037002
The Holocene extinction is also known as the "sixth extinction", as it is possibly the sixth mass extinction event, after the Ordovician–Silurian extinction events, the Late Devonian extinction, the Permian–Triassic extinction event, the Triassic–Jurassic extinction event, and the Cretaceous–Paleogene extinction event.
139752
Three of the five largest mass extinctions in Earth history are associated with the Mesozoic: a mass extinction occurred at the boundary between the Mesozoic and the preceding Paleozoic; another occurred within the Mesozoic at the end of the Triassic Period; and a third occurred at the boundary between the Mesozoic and ...
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['Woolly Mammoths. The last of the Great Woolly Mammoth populations vanished near the end of the last Ice Age over 4,000 years ago. ... ', 'Caspian Tigers. ... ', 'Thylacines (Tasmanian Tigers) ... ', 'Dodos. ... ', 'Passenger Pigeons. ... ', 'Polar Bears. ... ', 'Muskox. ... ', 'American Crocodiles.']
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Succession, it seems, is the gateway to evolution. There are five main elements to ecological succession: primary succession, secondary succession, pioneer and niche species, climax communities and sub-climax communities.
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['Sabre-toothed Cat. Often called Sabre-toothed Tigers or Sabre-toothed Lions, they existed 55 million to 11,700 years ago.', 'Woolly Mammoth. ... ', 'Dodo. ... ', 'Great Auk. ... ', 'Stellers Sea Cow. ... ', 'Tasmanian Tiger. ... ', 'Passenger Pigeon. ... ', 'Pyrenean Ibex. ... ']
385458
['1.1 Tyrannosaurus Rex.', '1.2 Stegosaurus.', '1.3 Triceratops.', '1.4 Velociraptor.', '1.5 Spinosaurus.', '1.6 Allosaurus.', '1.7 Archaeopteryx.', '1.8 Megalosaurus.']
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In the past 100 years alone, however, about 500 species have become extinct instead of the nine species that would have been expected at natural rates. These extinct species include 158 fish, 146 amphibians, 80 birds, 69 mammals and 24 reptiles.
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The mass extinctions are believed to have been partly the result of these animals having never been hunted by humans and having little fear of them. Ice Age megafauna, including the woolly mammoth and the cave bear, became extinct around the same time around 10,000 years ago..
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['Atmosphere - gas.', 'Hydrosphere - water.', 'Lithosphere - minerals.', 'Biosphere - life.']