Author Topic: Scientists find 'man's remotest relative' in lake sludge  (Read 671 times)

0 Members and 1 Guest are viewing this topic.

Online Buster's Uncle

  • Celebrating AC2's 10th Year- Little Terraformer That Could
  • Ascend
  • *
  • Posts: 47104
  • €142
  • View Inventory
  • Send /Gift
  • Because there are times when people just need a cute puppy  Soft kitty, warm kitty, little ball of fur  Someone thinks a Winrar is You!  
  • AC2 is my instrument, my heart, as I play my song.
  • Planet tales writer Smilie Artist Custom Faction Modder AC2 Wiki contributor Downloads Contributor
    • View Profile
    • My Custom Factions
    • Awards
Scientists find 'man's remotest relative' in lake sludge
« on: April 27, 2012, 03:40:27 PM »
Scientists find 'man's remotest relative' in lake sludge
AFP – 19 hrs ago...

After two decades of examining a microscopic algae-eater that lives in a lake in Norway, scientists on Thursday declared it to be one of the world's oldest living organisms and man's remotest relative.
The elusive, single-cell creature evolved about a billion years ago and did not fit in any of the known categories of living organisms -- it was not an animal, plant, parasite, fungus or alga, they said.
"We have found an unknown branch of the tree of life that lives in this lake. It is unique!" University of Oslo researcher Kamran Shalchian-Tabrizi said.
"So far we know of no other group of organisms that descends from closer to the roots of the tree of life than this species", which has been declared a new category of organism called Collodictyon.
Scientists believe the discovery may provide insight into what life looked like on earth hundreds of millions of years ago.
Collodictyon lives in the sludge of a small lake called As, 30 kilometres (18 miles) south of Oslo.
It has four flagella -- tail-like propellers it uses to move around, and can only be seen with a microscope. It is 30 to 50 micrometers (millions of a metre) long.
Like plants, fungi, algae and animals, including humans, Collodictyon are members of the eukaryote family that possess cell nuclei enclosed by membranes, unlike bacteria.
Using the characteristics of Collodictyon, scientists can now infer what prehistoric eukaryotes looked like, said Tabrizi -- probably a single-cell organism with fingerlike structures that it used to catch microscopic prey.
"They are not sociable creatures," added co-researcher Dag Klaveness, who bred millions of the tiny organisms for the study.
"They flourish best alone. Once they have eaten the food, cannibalism is the order of the day."
They have not been found anywhere but in Lake As.
"It is quite fascinating that we can still find these kinds of organisms after so many years," Tabrizi told AFP.
"It has been outside our living rooms for millions of years and we haven't seen it."
Collodictyon was first found in the lake about 20 years ago by University of Oslo scientists who recognised it was unusual but "didn't know how important it was", he added.


* User

Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length

Select language:

* Community poll

SMAC v.4 SMAX v.2 (or previous versions)
21 (7%)
XP Compatibility patch
9 (3%)
Gog version for Windows
84 (30%)
Scient (unofficial) patch
31 (11%)
Kyrub's latest patch
14 (5%)
Yitzi's latest patch
87 (31%)
AC for Mac
2 (0%)
AC for Linux
5 (1%)
Gog version for Mac
11 (3%)
No patch
15 (5%)
Total Members Voted: 279
AC2 Wiki Logo
-click pic for wik-

* Random quote

Remember, genes are NOT blueprints. This means you can't, for example, insert the genes for an elephant's trunk into a giraffe and get a giraffe with a trunk. There are no genes for trunks. What you CAN do with genes is chemistry, since DNA codes for chemicals. For instance, we can in theory splice the native plants' talent for nitrogen fixation into a terran plant.
~Academician Prokhor Zakharov 'Nonlinear Genetics'

* Select your theme