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Trama. Peter è un ingegnere con incubi ricorrenti in cui lui e la sua famiglia soffrono a causa di violenti scontri con un nemico extraterrestre. Gli incubi gli creano problemi sia al lavoro sia con la sua famiglia, che lo spinge a chiedere aiuto a uno psicanalista.
27 giu 2018 · Extinction - Un film di Ben Young. Un potere nascosto. Con Lizzy Caplan, Michael Peña, Emma Booth, Mike Colter, Tom Riley. Thriller, USA, 2018. Consigli per la visione +13.
- Ben Young
- Lizzy Caplan
Extinction is the termination of a taxon by the death of its last member. A taxon may become functionally extinct before the death of its last member if it loses the capacity to reproduce and recover. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively.
19 ott 2023 · Extinction is the dying out of a species. Extinction plays an important role in the evolution of life because it opens up opportunities for new species to emerge.
- Overview
- Six mass extinctions
- What can we do about it?
Extinctions happen when a species dies out from cataclysmic events, evolutionary problems, or human interference.
The truth is, scientists don’t know how many species of plants, animals, fungi, and bacteria exist on Earth. The most recent estimate put that number at 2 billion, and that will most likely change at some point.
One thing we do know: The western black rhinoceros, the Tasmanian tiger, and the woolly mammoth are among the creatures whose populations at one point dwindled to zero, and it’s possible that species extinction is happening a thousand times more quickly because of humans.
Extinction happens when environmental factors or evolutionary problems cause a species to die out. The disappearance of species from Earth is ongoing, and rates have varied over time. A quarter of mammals is at risk of extinction, according to IUCN Red List estimates.
To some extent, extinction is natural. Changes to habitats and poor reproductive trends are among the factors that can make a species’ death rate higher than its birth rate for long enough that eventually, none are left.
Humans also cause other species to become extinct by hunting, overharvesting, introducing invasive species to the wild, polluting, and changing wetlands and forests to croplands and urban areas. Even the rapid growth of the human population is causing extinction by ruining natural habitats.
Fossils show that there have been five previous periods of history when an unusually high number of extinctions occurred in what are known as mass extinctions. Most of the Earth’s species went extinct roughly 266 million to 252 million years ago in the Permian extinction.
Those losses, however, also paved the way for dinosaurs to evolve into existence, as mass extinctions create a chance for new species to emerge. Dinosaurs met their end about 65 million years ago in another mass extinction at the end of the Cretaceous period. A large crater off of Mexico’s Yucatán Peninsula suggests that an asteroid most likely struck there. Scientists believe that volcanic eruptions in India caused global warming that also may have contributed to the mass extinction.
Scientists are debating whether Earth is now in the midst of a sixth mass extinction. If so, it may be the fastest one ever with a rate of 1,000 to 10,000 times the baseline extinction rate of one to five species per year. Humans are largely responsible for the striking trend. Scientists believe that pollution, land clearing, and overfishing might drive half of the planet’s existing land and marine species to extinction by 2100.
Slowly increasing surface temperatures caused by heightened levels of greenhouse gases likely will cause many species to move toward the Earth’s poles and higher up into the mountains to stay in habitats with the same climates. But not all species will be able to adapt quickly enough to stave off extinction and many are expected to perish.
Using fewer fossil fuels by lowering the thermostat, driving less frequently, and recycling is one good way to slow the rate of extinctions. Eating less meat and avoiding products, like ivory, that are made from threatened species also can make a difference. At home, securing garbage in locked cans, reducing water usage, and refraining from using herbicides and pesticides can protect local wildlife.
See all National Geographic videos on wildlife conservation here.
2 giorni fa · Extinction, in biology, is the dying out or extermination of a species. It occurs when species are diminished because of environmental forces (natural or human-made) or because of evolutionary changes in their members. Learn more about mass extinctions and modern extinctions.
27 lug 2018 · Extinction (2018), scheda completa del film di Ben Young con Lizzy Caplan, Mike Colter, Michael Peña: trama, cast, trailer, gallerie, boxoffice, premi, curiosità e news.
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