the

Extinct Animals Scientists Are Close To Revive From Extinction

hi it's katrina from beautiful tigers

that were alive until recently to ice

age rhinos

here are nine animals that scientists

want to bring back to life

number nine caspian tiger the caspian

tiger was among the world's largest big

cats

until it went extinct during the 1960s

it was once present throughout turkey

and much of central asia including iran

iraq and parts of northwestern china

according to science alert

hunting habitat loss and food shortages

wiped the species out a little over

halfway through the 20th century

an early 2017 study published in the

journal biological conservation

proposed reintroducing the caspian tiger

by releasing specimens of its

genetically similar relative

the siberian tiger into habitats

formerly occupied by the caspian

subspecies

according to the authors the siberian

tiger's phenotype proves adaptable to

the arid conditions of the introduction

site

it would likely take over a decade to

bring the introduced population to a

sustainable level in the ili river delta

which seems like the most appropriate

place to attempt to revive the caspian

tiger

there they could hunt wild boar bukhara

deer and roe deer

an introduced population of 40 tigers

could reach 100 within

50 years of its release into the habitat

which would mark tremendous progress in

keeping endangered tigers on the planet

but there are implications to the

proposed endeavor including the need to

ensure that tigers and

humans can co-exist peacefully as well

as the requirement to restore prey

populations

before introducing tigers to the region

which would take up to 15 years

but scientists are seriously looking

into it and starting to plan

just in case number 8 the dodo bird

native to the island of mauritius the

dodo was a large flightless bird that

grew up to 3 feet tall and weighed as

much as 40 pounds

it went extinct during the 1600s

following the arrival of humans and

their non-native animal friends

such as dogs cats and rats in a 2018

research paper

scientists suggested that it may be

possible to revive the extinct dodo

population by using the genes of its

closest living relatives

the proposal came following the

discovery of the overall genomic

structure of dinosaurs

which may come in handy for bringing the

dodo and several other extinct birds

back to life

birds are considered dinosaurs closest

living relatives

and more recently extinct species with

genetically similar descendants

may therefore stand a chance at revival

university of kent scientists darren

griffith and rebecca o'connor

wrote in an article for the conversation

nevertheless

and it is a long shot it may be possible

in the future to use jurassic park

technology

to help undo some of the harm that

humans have caused

when asked which extinct animal would be

the most fun to revive

ancient dna expert and biologist beth

shapiro told smithsonian magazine that

the dodo was an ideal candidate

because it's very silly looking and has

several weird traits

on a more serious note she explained

that if the dodo were to be brought back

it could be restored to protected

habitats on mauritius

where people could go to observe dodos

in their native habitat

number 7. wooly mammoth the last

surviving population of woolly mammoths

died out around 4 000 years ago on

rangel island off siberia

after centuries of inbreeding by the

time they went extinct the creatures

were sickly

weak neurologically damaged and far less

fertile than they were during their

heyday

mammoths lived recently enough for

scientists to harvest genetic material

from their remains

raising questions about the possibility

of de-extinction

through the use of ancient dna doing so

is more complicated than it seems

especially because there were many

mammoth species throughout the

prehistoric world

and scientists are still trying to

figure out where each of them belongs on

the evolutionary family tree

there's also evidence that mammoths

interbred further blurring the lines

between different species

and giving single species a wide ranging

variety of characteristics

but that might make it easier to bring

them back this complicates the process

of reviving mammoths though leaving

scientists with tricky decisions about

which traits they would hand select to

incorporate into mammoth offspring

cloning mammoths isn't currently

possible because doing so would require

an

intact and viable mammoth cell which is

unlikely to ever be found according to

biologists and ancient dna expert beth

shapiro

however other scientists believe that it

is possible

and claim to actually be working on it

right now with dna taken from

intact frozen mammoths appearing in

siberia the most probable method for

bringing back mammoths would involve

tweaking the dna of its closest modern

pachyderm relative

the asian elephant to more closely

resemble the ancient creature

best case scenario whatever scientists

created using this method would still be

the product of guesswork

this new creature might lack genetic

variations that mammoths possessed at

certain times or in specific regions

even if the genetically modified

mammoth-like animal looked genuine

it would need to be able to survive in

environments much different than those

its ancestors lived in

since the world has changed a lot over

10 000 years the most likely places

would be the coldest where the mammoths

might be able to get enough food

and now for number six but first be sure

to subscribe if you are new here and let

me know your thoughts in the comments

below

should we try to bring these animals

back to life if so which ones

and why number 6. stellar sea cow

as a sirenian the stellar sea cow was

most closely related to the dagong and

manatees

scientist george wilhelm stellar first

described it in 1741

during a voyage across the bering sea

while stranded on an island

stellar and his crew encountered

colonies of these sea cows

who measured up to 25 feet long and

weighed as much as six tons each

within 27 years of stellar's discovery

the species was completely wiped out due

to over hunting

after spending millions of years as an

important participant of its marine

ecosystem

the stellar sea cow was more or less

wiped out in the blink of an eye

after surviving the quaternary

extinction event at the end of the

pleistocene epoch

stellar sea cows were found exclusively

in frigid arctic waters

their rapid extinction helped bring

awareness to the academic community

that it is actually possible to entirely

wipe out a marine species at human hands

humanity's role in the animal's demise

has inspired some scientists and experts

including science writer carl zimmer to

advocate for its revival

but researchers admittedly know very

little about the species

leaving them to speculate regarding its

behavior in biology

and whether bringing it back to life is

even an option

number 5. labrador duck the labrador

duck is believed to have become extinct

during

the late 19th century due to suspected

human related causes

despite its reputation for not tasting

very good the bird was already rare when

european settlers arrived in north

america

the last specimens were collected during

the 1870s

and the last known sighting occurred in

1878 in elmira new york

bird expert brian fox ellis told the

star gazette

in late 2016 it is a sea duck that was

almost exclusively found along the

atlantic coast between baltimore and

chesapeake bay and labrador

and rarely found inland so why one was

found here

i'm not sure consequently there is

little information available about the

labrador duck

and there are only 55 preserved

specimens in museums throughout the

world

scientists are admittedly unsure of what

its breeding habits involved

and the species extinction remains

shrouded in mystery as well

humans may have over hunted their eggs

or driven them away from their natural

habitat

or they may have fallen victim to the

feather trade but it's hard to say what

happened for sure

some bird enthusiasts believe that the

labrador duck never went fully extinct

and that there are some holdout

individuals and populations waiting to

be discovered

but in ellis's words this bird is gone

and it will take another heaven

and another earth to create another

species of its like

a january 2017 science alert article

stated that scientists want to bring the

labrador duck back

but information on this alleged endeavor

is scarce leaving us to wonder whether

reviving the species is truly part of

any researcher's plans

number 4. wooly rhinoceros woolly rhinos

live during the same ice age period as

woolly mammoths yet their remains are

much rarer

scientists also know far less about them

including their placement on the

evolutionary timeline and information

about their lifestyles and habits

the species went extinct roughly 14 000

years ago after roaming eurasia for

hundreds of thousands of years

for reasons that are not entirely clear

researchers long speculated that human

activity such as overhunting

may have been a causal factor genetic

abnormalities were also suspected of

wiping the creature out

but recently published research in the

journal current biology

suggests that climate change played a

role in the wooly rhino's disappearance

while the species demise came some 16

000 years after humans arrived in its

region

its extinction also coincides with a 2

000 year long severe warming period

known as the bowling allorod

interstadial during this time

ice sheets melted rapidly and sea levels

rose by roughly

50 feet wooly rhinos may have been

unable to cross the bering land bridge

that once connected modern-day siberia

to alaska due to an inability to adapt

to a tundra climate

leaving them with no choice but to

perish only a few

intact woolly rhino specimens have ever

been discovered

in 2015 the complete carcass of a

seven-month-old woolly rhino known as

sasha

was found in a frozen siberian riverbank

offering a glimmer of hope for the

possibility of harvesting genetic

material

scientists started looking at the idea

of being able to clone the extinct

creature

as of now the process seems wildly

complicated and therefore

unlikely to happen super soon but it

also hasn't been ruled out as impossible

besides the fact that the woolly rhino

has no known modern relatives

appropriate for using in the

de-extinction process

bringing non-existent animals back to

life poses major ethical quandaries

leaving experts with questions of

whether they should revive long-gone

creatures

even if they can right now our current

rhino survival is hanging by a thread

so there is much debate as to whether it

would be a good idea to bring back

an extinct one number 3. irish elk

the irish elk was one of the largest

deer species that ever existed

with antlers measuring as much as 12

feet across

it roamed throughout eurasia mostly

during the pleistocene

with the most recent known remains of

the creature dating back to around 7

700 years ago the animal's range was not

restricted to ireland

it received its name due to the

remarkably well-preserved fossils that

have been found in the country

irish elk carcasses are increasingly

turning up among melting permafrost in

siberia

offering scientists a potential

opportunity to harvest their dna

and perhaps clone them or use other

means to bring them back to life

it's believed that the species went

extinct as a result of its antlers

becoming unmanageably heavy and large

another theory suggests that irish elk

were incapable of coping with a warming

climate

posing the question of whether it would

be wise to try to bring them back with

less land than ever for wild animals to

roam and a rapidly changing climate

the planet may not be in the best

condition for hosting a gigantic

mammal's comeback

the sad reality is that if the irish elk

were to return to life today

it would most likely only be able to

survive under human supervision at a zoo

or in a lab number 2. the moa

the idea of using jurassic park

technology to revive extinct species has

become increasingly realistic in recent

years

especially when it comes to bringing

back ancient birds an extinct flightless

bird endemic to new zealand called the

little bush moa

is among the top candidates for revival

the little bush moa abruptly went

extinct during the 13th century due to

over hunting

but in early 2018 a team of harvard

university researchers announced that

they successfully assembled a

near-complete genome of the bird

offering hope of its eventual return to

existence

using groundbreaking dna sequencing

technology they inserted the extinct

moa's genetic material into an emu egg

then painstakingly assembled the 900

nucleotides into their correct positions

throughout the study researchers

determined that the moa was related to

the kiwi

ostrich and emu birds there were nine

moa species total with the little

bushmoa being the smallest and most

common among them

on average the little bush moa was four

feet tall and weighed around 66 pounds

while some scientists are all for trying

to revive ancient birds others do not

believe it's a great idea

but the idea of de-extinction is not

necessarily limited to bringing back

extinct species

it could prove useful for saving modern

creatures facing the threat of

extinction

de-extinction could be useful for

inspiring new science and could be

beneficial for conservation if we ensure

it doesn't reduce existing conservation

resources

university of queensland scientist hugh

possingham said in a statement

however in general it is best if we

focus on the many species that need our

help now

number 1. pyrinian ibex the bucardo or

pyrinian ibex was a subspecies of

spanish ibex that was formally declared

extinct in the year 2000

when the last known surviving female was

found dead in spain

the animal's demise came after a

200-year period of increased hunting in

the region

and scientists interest in reviving it

came almost immediately following its

extinction

in 2009 using genetic material harvested

from frozen skin samples of the last

surviving pyrenean ibex

researcher and study author jose fulch

and his colleagues

created clone embryos by inserting the

deceased creature's dna into

goat eggs which were emptied of their

own material these eggs were implanted

in 208 specimens of spanish ibex

subspecies seven became pregnant and

just one carried to term

the youngster died from respiratory

failure immediately after birth

which the researchers somewhat expected

despite the creature's death

experts hailed the resurrection as a

major scientific accomplishment

but they cautioned people to avoid

becoming too hopeful about the process

the public should not leap to the

conclusion that we are on the edge of

cloning woolly mammoths or dinosaurs

scientist david wilt told national

geographic

even if such embryos could be

constructed there are no

appropriate surrogate mothers for long

dead species

thanks for watching would you like to

learn more about extinct animals

scientists are trying to bring back to

life

let me know in the comments below and be

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see you next time bye