Offbeat The freak, or indestructible 'moss piglet', shall inherit the Earth

19:51  14 july  2017
19:51  14 july  2017 Source:   AFP

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Earth ’s designated heir is the tardigrade, a microscopic, grub-like, eight-legged animal that can live in water or on land, in extreme pressure high or low. Also known as a water bear or moss piglet , it can withstand sizzling heat, freezing cold, and high radiation, 30 years without food

The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth . The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth . Indonesia foils trade in vulnerable slow lorises. Military’s over-reach in political issues a worrying trend: PILDAT.

A scanning electron microscope image of the hydrated tardigrade or 'water bear' (Ramazzottius varieornatus), in an image released by Nature Publishing Group on September 20, 2016© Provided by AFP A scanning electron microscope image of the hydrated tardigrade or 'water bear' (Ramazzottius varieornatus), in an image released by Nature Publishing Group on September 20, 2016 If a monster space rock crashes into our planet or radiation from an exploding star boils our oceans, humans and most other life forms will disappear.

But one creature is sure to survive, according to a study published Friday.

And it will keep going for as long as the Sun doesn't die -- at least another 10 billion years.

Earth's designated heir is the tardigrade, a microscopic, grub-like, eight-legged animal that can live in water or on land, in extreme pressure high or low.

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The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth . Indonesia foils trade in vulnerable slow lorises. Military’s over-reach in political issues a worrying trend: PILDAT. The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth .

The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth . Indonesia foils trade in vulnerable slow lorises. Military’s over-reach in political issues a worrying trend: PILDAT. The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth .

Also known as a water bear or moss piglet, it can withstand sizzling heat, freezing cold, and high radiation, 30 years without food, and even being dried to a crisp.

Despite its diminutive size -- under a millimetre (0.04 inches) -- it is considered the world's toughest animal.

The tardigrade, said researchers from Oxford and Harvard, will survive all foreseeable astrophysical catastrophes -- asteroid strikes, exploding stars (supernovae) or gamma ray bursts -- and "be around for at least 10 billion years."

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The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth . The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth . Indonesia foils trade in vulnerable slow lorises. Military’s over-reach in political issues a worrying trend: PILDAT.

The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth . Indonesia foils trade in vulnerable slow lorises. Military’s over-reach in political issues a worrying trend: PILDAT. The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth .

That is far better than the diagnosis for our own species.

A light micrograph of a tardigrade, or water bear, the only animal known to survive the extreme environment of outer space is shown in this University of North Carolina image© Provided by AFP A light micrograph of a tardigrade, or water bear, the only animal known to survive the extreme environment of outer space is shown in this University of North Carolina image "Without our technology protecting us, humans are a very sensitive species. Subtle changes in our environment impact us dramatically," said Rafael Alves Batista of Oxford University, a co-author of the study in the journal Scientific Reports.

"There are many more resilient species on Earth. Life on this planet can continue long after humans are gone."

Batista and a team set out to determine what kind of a catastrophe would be required to wipe Earth clear of all life.

And they found it would be nigh impossible -- once life takes root, it is surprisingly difficult to eradicate.

Supernovae or gamma-ray bursts, electromagnetic explosions that happen in other galaxies, could deplete the Earth's protective ozone layer which protects us from radiation. But life could continue below ground, and deep under water.

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The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth . If his supporters applied their mind, they would never support Nawaz Sharif because he lost authority to rule, and should step down forthwith,” said PTI supporter Muahmmad Akram, while talking to Pakistan Today.

Earth ’s designated heir is the tardigrade, a microscopic, grub-like, eight-legged animal that can live in water or on land, in extreme pressure high or low. Also known as a water bear or moss piglet , it can withstand sizzling heat, freezing cold, and high radiation, 30 years without food

And on Mars?

A facial view of a tardigrade or 'water bear' (Ramazzottius varieornatus), in an image released by Nature Publishing Group on September 20, 2016© Provided by AFP A facial view of a tardigrade or 'water bear' (Ramazzottius varieornatus), in an image released by Nature Publishing Group on September 20, 2016 Even a complete loss of atmosphere would not affect species on the ocean floor.

A large asteroid strike could cover the Earth in a cloud of Sunlight-blocking dust, causing temperatures to drop and a so-called "impact winter."

Creatures dependent on light would die off, but in volcanic vents in the deep ocean, life would continue.

No space rock big enough to cause a complete species annihilation is on a collision course with our planet, the team found.

Nor are there massive stars or potential gamma ray sources near enough to boil Earth's oceans if they erupted.

The only event that would kill even the tardigrades, is when the Sun eventually burns out.

"Although near supernovae or large asteroid impacts would be catastrophic for people, tardigrades could be unaffected," said co-author David Sloan.

Tardigrades have a body divided into four segments, each with a pair of legs ending in sharp claws.

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The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth . Indonesia foils trade in vulnerable slow lorises. Military’s over-reach in political issues a worrying trend: PILDAT. The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth .

The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth . Indonesia foils trade in vulnerable slow lorises. Military’s over-reach in political issues a worrying trend: PILDAT. The freak , or indestructible ‘ moss piglet ’, shall inherit the Earth .

They live in moss, on plants, in sand, in fresh water or in the sea.

Water bears can survive temperatures as high as 150 degrees Celsius (302 degrees Fahrenheit) and as low as minus 270 degrees Celsius (-454 Fahrenheit).

They can come back from being dried out to a lifeless husk for decades, and withstand near-zero pressure in outer space as well as the crushing depths of the Mariana Trench, 11 kilometres (seven miles) below sea level.

They can survive radiation up to 6,200 gray (Gy). A dose of 6 Gy can kill a human.

The tardigrade's extreme resilience points to another tantalising possibility -- the existence of life elsewhere in our Solar System in places once thought too hostile.

If a tardigrade can survive these extreme conditions, then so may other creatures beyond Earth's atmosphere.

Subsurface oceans believed to exist on Jupiter's moon Europa and Saturn's Enceladus, "would have conditions similar to the deep oceans of Earth where tardigrades are found," said the authors.

'Super-Earth' Alien Worlds May Carve Up Planet-Forming Disks .
<p>University of Arizona postdoctoral researcher Ruobing Dong and his colleagues propose that super-Earths can carve out multiple gaps in the disks of gas and dust that surround young stars.</p>But the existence of so many super-Earths seems to contradict astronomers' understanding of planet formation. Indeed, observations of newborn solar systems show features that seem to need the presence of more massive gas giants like Jupiter.

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