Tuesday, February 25, 2020
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

How can sea spiders grow to such huge sizes ?


Posted on Friday, 12 April, 2019 | Comment icon 3 comments

How does something this big survive in such cold water ? Image Credit: NOAA
Scientists have determined how sea creatures living in the depths of the polar oceans become so enormous.
With leg spans of up to 50cm - these gargantuan eight-legged marine arthropods might resemble the spiders we find on land but they are in fact a completely different type of creature.

Now scientists have solved one of the biggest mysteries surrounding these deep-sea giants - that of how they are able to survive in the cold depths - and it is all to do with holes in their exoskeletons.

The researchers had been investigating what is known as the oxygen-temperature hypothesis which suggests that creatures living in very cold water are able to grow large because they have slow metabolisms and because colder water is able to hold more oxygen than warmer water.
Surprisingly however, this turned out not to be the case. Instead, the researchers found that the larger the creature, the more porous its exoskeleton became - thus allowing it to absorb more oxygen.

"The exoskeletons of the really big ones look almost like Swiss cheese," said doctoral student Caitlin Shishido. "We were amazed that not only could the giant animals survive at much higher temperatures than they usually see, but they dealt with warm temperatures just like the smaller ones."

"That's not supposed to happen; larger animals should exhaust their oxygen supply and run out of gas much sooner than small ones."

Whether these undersea giants could live for long periods in warm water however remains unclear.


Source: Live Science | Comments (3)

Tags: Sea Spider

Recent comments on this story
Comment icon #1 Posted by Seti42 on 12 April, 2019, 19:36
To answer the headline question: Because god hates us, and the whole "burn it with fire" thing doesn't work under the sea.
Comment icon #2 Posted by EnderOTD on 13 April, 2019, 3:59
Cuddly fella, isn?t it.
Comment icon #3 Posted by Cora Calliope on 19 April, 2019, 3:52
Creepy!


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

6664963
278080
183923

 
Oxygen found half a billion light years away
2-24-2020
For the first time ever, scientists have discovered evidence of molecular oxygen in a distant galaxy.
'Engine of consciousness' found in macaques
2-24-2020
Scientists have identified an area of the brain that seems to be strongly connected to consciousness.
Family hears music, voices coming from walls
2-24-2020
An Illinois family has been plagued by what sound like radio broadcasts coming from their walls at night.
Flat-Earther Mike Hughes dies in rocket mishap
2-23-2020
The self-taught rocket scientist and daredevil was killed during an attempt to prove that the Earth is flat.
Stories & Experiences
The babysitter
2-8-2020 | ON
 
Mystery brain surgery and JFK
2-7-2020 | Toronto Ontario Canada
 
 
I keep bringing spirits home
2-7-2020 | Michigan
 
Dog and Jamaican statue
1-10-2020 | Canada
 
 
Life changing experience
12-19-2019 | Australia
 
Unexplained smoke or fog
12-19-2019 | West Texas, USA
 
He came in the night
12-19-2019 | CA
 
My reptilian encounter
11-24-2019 | Ireland and Australia
 

         More stories | Send us your story
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.712 Unexplained-Mysteries.com (c) 2001-2020
Terms   |   Privacy Policy   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ