Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

We are all now connected by the Internet, like neurons in a giant brain.

 

Stephen Hawking

 

Fossils fill evolutionary gap between fish and 4-legged beasts

RATE THIS! +10
Posted in Science on 10th May, 2015 09:58 PM by AlexMuller

How did fish evolve into four-legged beasts? A key part of that mystery has been solved by fossils found on a Nova Scotia beach. Tetrapods, named for their four limbs, are fish-like amphibians that made the transition from the sea to the land. A gap in the fossil record of tetrapod evolution has puzzled scientists since the 1950s.

 
But tetrapod fossils found at Blue Beach, located on the Avon River estuary on the Bay of Fundy near Wolfville, N.S., suggest the gap may have been an illusion. The findings were published in a new paper published in PLOS ONE by Anderson and Canadian and British colleagues.
 
Tetrapods first developed flipper-like limbs and started crawling out of the water about 370 million years ago. At that time, they were quite large, about the size of a person, and very fish-like, with tail fins and internal gills. They also had variable numbers of fingers and toes, "up to eight," Anderson said in an interview that airs Saturday.
 
Now, Anderson, Chris Mansky of the Blue Beach Fossil Museum in Nova Scotia, and their collaborators have found and described fossils from at least four different kinds of tetrapods. The fossils show that both fish-like and advanced tetrapods lived alongside one another.

Tags: fishevolutionbiologyfossilnaturesea

Read original article » Back to category

Comments



 

Recent headlines

  • Posted in Medicine on 2017-07-26 17:05:11
    Eye test could help diagnose autism..read more
    Posted in Science on 2017-07-26 16:55:24
    Cognitive cross-training enhances learning, study finds..read more
    Posted in Software on 2017-07-26 16:45:19
    AI Grant aims to fund the unfundable to advance AI and.....read more
    Posted in Medicine on 2017-07-25 15:53:01
    New blood test can check for 13 types of cancers..read more
    Posted in Science on 2017-07-25 15:47:06
    The Moon Is Seriously Loaded With Water, More Than We.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Nanoparticle vaccine shows potential as immunotherapy to fight.....read more
    Posted by AlexMuller
    Obesity is top cause of preventable life-years lost, study shows..read more
    Posted by AlexMuller
    Light can be utilized to control gene function..read more
    Posted by AlexMuller
    Brain stimulation restores memory during lapses, research shows..read more
    Posted by AlexMuller
    Wax worm caterpillar will eat plastic shopping bags: New.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me