Extinction means the complete disappearance or dying out of a species of plants or animals. It occurs when there are no more individuals of that species left alive on the planet.
Full definition
The current annual rate of
extinction of species far exceeds any plausible rate of generation of species.
The African elephant is classified as «vulnerable» and is facing a high risk of
extinction in the wild.
In other words, if we lose all currently threatened species, we will be on a course for a new mass
extinction event in just over 500 years.
The unprecedented rapid change could accelerate the already high rate of
species extinction as plants and animals fail to adapt quickly enough.
Using the single - species, or «climate envelope,» approach, researchers have predicted that 15 percent to 37 percent of species will be faced
with extinction by 2050.
That could start to change with the publication this week of the first list of
extinction risks for the world's plants.
But men have also saved others from
extinction by taking special pains to ensure their continuing reproduction.
Many of these species, known and unknown,
face extinction in the next few decades.
It is possible that this volcanic eruption might have indirectly caused the
near extinction of humans.
At a time when scientists warn that humans may be causing the sixth mass
extinction on earth, how do we see and relate to other animals?
Climate change caused by the eruption may have helped send the dinosaurs
into extinction.
Wild species are threatened with
extinction as their habitats are destroyed by human disturbance.
If species can move freely to new locations then the risk of
local extinction decreases from around 25 % to 20 % with a 2 °C global mean temperature rise.
In fact, he fears that AI could become more powerful than people and perhaps cause
human extinction if it grows too smart.
Or maybe a theory about an on - going (catastrophic) mass
extinction due to anthropogenic causes?
However, parks and reserves will only
prevent extinction of threatened species, the paper emphasizes, if they suffer no further degradation.
Environmental researchers predict that changes from global warming could push 1 million species
toward extinction by 2050.
The designer took up a big challenge in conveying the alarming trend of
animal extinction throughout the globe.
Spacious, eye - catching pages pack in a wealth of information about evolution over four billion years and link theories about
dinosaur extinction to urgent questions about global warming today.
A
global extinction crisis should show up in declining levels of local biodiversity, right?
Approximately 20 to 30 percent of plant and animal species assessed so far are likely to be at increased risk of
extinction if increases in global average temperature exceed 1.5 to 2.5 °C.
That might look bad for
graduated extinction, but notice that fewer families in the control group actually participated in the test.
Isn't physical retail a dinosaur destined for
extinction because of the rapid growth of online shopping?
Our world is facing the greatest
extinction crisis since the fall of the dinosaurs some 65 million years ago.
Four - out with a big - man roller is still a perfectly acceptable offense that I really don't think is headed
towards extinction.
A
massive extinction resulting from habitat loss is under way — but perhaps not as rapidly as is often predicted.
Based on results of a new study, the researchers say that the probability of the mass -
extinction occurring was only 13 percent.
Additionally, the dietary health of [Indigenous] communities is predicted to suffer as the plants and animals that make up our traditional diets could be at risk of
extinction through climate change.
It sounds
like extinction may not be an event with a cause, but a process that may involve chains of events.
That means two - thirds of all wildlife populations are in danger of complete
extinction within the next four years.
Current competing hypotheses for the mammoth's
extinction point to human hunting or climate change, possibly combining in a deadly one - two punch.
Different populations could still become isolated with increased risk of
extinction over time.
Phrases with «extinction»