Sunday, August 25, 2019
Contact us    |    Advertise    |   Help    |   Cookie Policy    |   Privacy Policy    RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Did a supernova prompt us to walk upright ?


Posted on Friday, 31 May, 2019 | Comment icon 8 comments

A very close supernova could wipe out all life on Earth. Image Credit: CC BY 4.0 ESO/M. Kornmesser
A new study has linked a 2.6 million-year-old supernova explosion with our ancestors' move to bipedalism.
While scientists have long suspected that the shift towards walking upright was prompted by major environmental changes, exactly what brought about these changes has long remained unclear.

Now though, a new study published in the Journal of Geology has put forward the theory that a supernova explosion - which happens when a very large star dies - may have been responsible.

This cataclysmic event, the researchers argue, could have charged the Earth's atmosphere, increasing the frequency of lightning strikes and causing immense wildfires.

With fewer trees to climb and larger expanses of grassland to cross, our ancestors may have shifted to walking upright to help them move more quickly and to keep a better eye out for predators.

"After this conversion to savanna, they would much more often have to walk from one tree to another across the grassland, and so they become better at walking upright," said lead author Adrian Melott.

"They could see over the tops of grass and watch for predators. It's thought this conversion to savanna contributed to bipedalism as it became more and more dominant in human ancestors."

Source: BGR.com | Comments (8)

Tags: Supernova

Recent comments on this story
Comment icon #1 Posted by Piney on 29 May, 2019, 13:49
It was also a nearby binary supernova which gave our solar system all it's heavier elements when it was first forming.  But as for supernovas shifting the climate? No, many different planetary processes did that. Along with meteors.
Comment icon #2 Posted by Sir Smoke aLot on 29 May, 2019, 16:22
Our genes are always affected by space, by space radiation that is. Constant mutations lol these mega events just add flavors and hasten things up  
Comment icon #3 Posted by Noteverythingisaconspiracy on 29 May, 2019, 16:53
Everything in our bodies, except the hydrogen, is basically leftovers from a supernova. 
Comment icon #4 Posted by pallidin on 31 May, 2019, 19:06
I've also heard that gold is not at all indigenous to Earth (with respect to VERY early Earth) but rather the result of massive heavy-metal bombardment by impacted asteroids and meteorites later-on; far before even a single microbe developed here.
Comment icon #5 Posted by Stiff on 31 May, 2019, 19:09
It's always a learning curve
Comment icon #6 Posted by AllPossible on 31 May, 2019, 20:30
I still walk with a hunch. They call me hunchback of notre dame on the streets.
Comment icon #7 Posted by qxcontinuum on 1 June, 2019, 3:44
Heck no, the reason we started walking upright and the only emotional physical posibility in such of short time was in water since food abounded more than on grass lands.
Comment icon #8 Posted by lost_shaman on 2 June, 2019, 0:22
Oh my gosh! We already know Hominins walked out of the forests an onto the savannahs. This hypothesis invokes Supernovas to induce more lightning that ends up burning away the forest and this leads to Hominins walking is just silly as if Climate can't simply change over millions of years naturally without invoking Supernovas!  


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

6528876
273591
181552

 
Police raid ET contactee group in Thailand
8-25-2019
The Khao Kala Meditation Center, which is run by a UFO group, has been raided by authorities twice in one week.
Eggs harvested from last northern white rhinos
8-25-2019
An unprecedented procedure could help to ensure the continued survival of the critically endangered species.
8-year-old steals parents' car twice in one week
8-24-2019
A young driving fan from Germany ended up crashing after repeatedly taking his parents' car out on a joyride.
NASA is investigating 'first crime in space'
8-24-2019
The case is believed to be the first time that someone has been accused of committing a crime aboard the ISS.
Stories & Experiences
A visit from beyond
8-20-2019 | Australia
 
A strange voice
8-5-2019 | St. Catharines Ontario.
 
House vibrates
7-20-2019 | Northern part of lower Michigan
 
Sudden writing on hand
7-20-2019 | England
 
 
Spontaneous exorcisms
7-5-2019 | Ontario
 
A call from 'The Lobster'
7-5-2019 | Russia
 
Witnessing tree spirits
6-25-2019 | Ontario
 
I didn't move my blankets
6-25-2019 | Spring, TX
 
Bitten by a spirit?...true story
6-15-2019 | Dallas, Tx
 

         More stories | Send us your story
Featured Videos
Gallery icon 
Carl Sagan - Pale Blue Dot
Posted 8-8-2019 | 5 comments
The late Carl Sagan delivers this moving monologue about our place in the universe.
 
How do you move a 13-ton Sphinx ?
Posted 7-3-2019 | 2 comments
A look at how the Sphinx of Ramses II was moved at Philadelphia's Penn Museum.
 
'Deleting' disease using CRISPR
Posted 6-15-2019 | 5 comments
A look at science's goal of eliminating genetic diseases using gene-editing techniques.
 
 View: More videos
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.712 Unexplained-Mysteries.com (c) 2001-2019
Terms   |   Privacy Policy   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ