Green Videos & Green News: Environment Videos // Current

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The Future of Evolution: What Will We Become?

"The past of human evolution is more and more coming to light as scientists uncover a trove of fossils and genetic knowledge. But where might the future of human evolution go?

An old cliché has the highly evolved humans of the future sporting large heads to hold their advanced enlarged brains, "but that's nonsense, whole nonsense," said paleontologist Peter Ward at the University of Washington at Seattle, author of "Future Evolution."

"If you've ever gone through a childbirth or witnessed one," Ward says, "we're already anatomically right on the edge of how big our heads can go — our big brains have already caused extreme problems in childbirth, and if we had bigger and bigger brains, that'd cause more mothers to die in childbirth, so evolution would select against that."

Another idea, suggested by evolutionary theorist Oliver Curry of the London School of Economics, seems like a retread of ideas from science fiction writer H.G. Well's classic "The Time Machine," with the human species split in two over time — an underclass of dim-witted, short goblins, and a genetic upper class of tall, slim, healthy, attractive, intelligent and creative superhumans that eventually are spoiled by technology that will do everything for them, resembling domesticated animals.

"That's crap," Ward said. "Why would that happen? Are we like blind cavefish? After we get Google, do we get stupider? Intelligence is coded on too many genes to just lose a trait like intelligence. That's not going to happen."

Ward suggests that, if left untouched, humans might converge in appearance as populations mix. "I kind of view us all as eventually having chocolate-covered hair and medium stature, getting rid of all extremes," he speculated. "Of course, the big elephant in the room, the change from the past that you cannot ignore when talking about the future of human evolution, is genetic engineering."

Humanity now has an unparalleled means by which to direct our evolution — genetic engineering. By using viruses and other techniques, we can in theory modify our genomes, and over time, scientists may uncover genes underlying intelligence, health, athletic prowess, longevity and other desirable traits, engineering what might seem like superhuman progeny. Genetic engineering is how Ward speculated new species of humans might emerge.

"I think taboos would arise which would prevent mating between populations — 'I don't want them anymore' or 'We want natural people,'" he said. "Of course this is all pure speculation, but this is the only way I can see new human species emerging — unless we get off the planet."

Much more at link!
http://www.livescience.com/strangenews/091116-human-evolution-future.html

So much to think about...where do you think evolution will go? What does the future hold for humans?"The past of human evolution is more and more coming to light as scientists uncover a trove of fossils and genetic knowledge.... more

DeliaTheArtist
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10 comments

10 hours ago

^#2

Depleted uranium

DU: Depleted uranium, a unique waste that will become more and more radioactive until, roughly, the year 1002009. The acronym also... more

Vierotchka
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27 comments

12 hours ago

^#3

Recycled Wall Brick Built to Save Water

It might look like your typical old red clay house-building brick on one side, but turn it over and there is a shift that hints at... more

singrrr
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0 comments

10 hours ago

^#4

Plastic Chemicals Feminize Boys

Chemicals in plastics alter the brains of baby boys making them "more feminine", say US researchers.

Progresshiv
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2 comments

15 hours ago

^#5

Frigid Antarctica loaded with viruses

Antarctica's icy lakes are home to a surprisingly diverse community of viruses, including some that were previously unidentified, a new study finds.

At first glance, Antarctica's freshwater lakes don't seem very hospitable to life. They remain frozen for a good nine months out of the year, and they contain very few nutrients. Some of these lakes have little animal life and are dominated by microorganisms, including algae, bacteria, protozoans and viruses.

With few animal and microbial predators around, viruses likely play an important role in controlling the abundance of other microorganisms, the researcher say. However, these viruses have been historically hard to study since many cannot be grown in a laboratory. But thanks to new genome sequencing technology, scientists can identify viruses without needing to grow them.

"We are just starting to uncover the world of viruses, and this is changing the way we think about viruses and the role they play in microbial ecosystems," said Antonio Alcami, a researcher from the Spanish Research Council.

A virus is little more than a package of DNA surrounded by a capsule structure. To survive, viruses must hijack, or infect, living cells and use the host's equipment to replicate.

Alcami and his colleagues analyzed DNA from viruses found in water samples collected from Antarctica's Lake Limnopolar, a surface lake on Livingston Island. They found nearly 10,000 species, including some small DNA viruses that had never before been identified. In total, the viruses were from 12 different families, some of which may be completely new to science, the researchers suggest.

The results reveal this Antarctic lake supports a virus community that's more diverse than most aquatic environments studied in the world so far — a surprising find considering that the polar region is generally thought to have low biological diversity due to the extreme environmental conditions. The scientists speculate the newly discovered viruses may have adapted specifically to thrive in such harsh conditions.

The team also found the community of viruses changed dramatically depending on the season. When the lake was ice-covered in the spring, the liquid water under the ice was inhabited by mostly small viruses, but in the summer months when the ice melted, the lake was home to mostly larger viruses.

"It looks like a completely different lake in summer," Alcami said. The scientists think the shift might be due to an increase in algae in the summertime, which the larger viruses infect.
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Good reason to not dig too deep.Antarctica's icy lakes are home to a surprisingly diverse community of viruses, including some that were previously... more

JanforGore
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7 comments

1 day ago

^#6

Plug-in electric scooter put to the test

“Mezamashi TV” morning show takes a new plug-in scooter for a 141-kilometer test run from Numazu to Tokyo. The scooter... more

Nettle
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2 comments

7 hours ago

^#7

Homeopathic Remedy Thwarts Flu, But Packaging Misses The Eco-Friendly Boat

What do you do when all of your friends and family are dropping like flies around you, coughing and projectile sneezing... more

sfinfgeld2
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1 comment

12 hours ago

^#8

Obama Hobbled By Congress In Fight Against Global Warming (photo)

President Obama came into office pledging to end eight years of American inaction on climate change under President George W.... more

current_green_bot
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0 comments

15 hours ago

^#9

NASA - The Great 2012 Doomsday Scare

The year 2012 is acting like a badly behaved celebrity. Frightful rumors and gossip are spreading. Already more than a half dozen books are marketing, to eager fans, astronomical fears about 2012 End Times. Opening in theaters on Friday, Nov. 13, will be 2012, a $200-million disaster movie that seems designed to break all records for disaster spectacles -- with cracking continents, plunging asteroids, burning cities, and a tsunami throwing an aircraft carrier through the White House. The movie's ominous slogan: "Find out the truth." Two other major movies about the 2012 doomsday are also reported to be in the works.

Anyone who cruises the internet or all-night talk radio knows why. The ancient Maya of Mexico and Guatemala kept a calendar that is about to roll up the red carpet of time, swing the solar system into transcendental alignment with the heart of the Milky Way, and turn Earth into a bowling pin for a rogue planet heading down our alley for a strike.

None of it is true. People you know, however, are likely becoming a bit afraid that modern astronomy and Maya secrets are indeed conspiring to bring our doom. If people know you’re an astronomer, they will soon be asking you all about it.

Here is what you need to know. (read on at article... very enlightening!)

The end says this:
The Secret NASA Conspiracy
Some advocates for the 2012 catastrophe say that what will actually cause the devastation is an alignment of planets. There is no planet alignment on the winter solstice in 2012. Nonetheless, advocates of doom connect the fictional alignment to astrological predictions or groundless claims about a reversal of Earth's magnetic field and unprecedented solar storms. Many internet postings and guests on all-night apocalyptic radio have elaborated on these themes.

In particular, several threads of irrational thought have created an internet phantom, the secret planet Nibiru. It's the bowling ball, and Earth is the pin. There is no such planet, though it is often equated with Eris, a plutoid orbiting safely and permanently beyond Pluto. Some insist, however, that a NASA conspiracy is in play and that Nibiru, looming in on the approach, can already be seen in broad daylight from the Southern Hemisphere. It was supposed to become visible from the Northern Hemisphere, too, by last May, but like a fickle blind date, it stood up those awaiting it.

Others on the Web, confused about the supposed alignment of the winter-solstice sun with the Milky Way's center, have declared that the Sun is now plummeting to the Milky Way’s center and dragging Earth with it. The predicted result? Earth’s polar axis will shift. Most of what's claimed for 2012 relies on wishful thinking, wild pseudoscientific folly, ignorance of astronomy, and a level of paranoia worthy of Night of the Living Dead.

(arcticspirit- seriously read the entire article, there is so much MORE in it!!!)The year 2012 is acting like a badly behaved celebrity. Frightful rumors and gossip are spreading. Already more than a half dozen... more