sci-universe

sciencesoup:

Living Fossils

Located in Hamelin’s Pool, a shallow area of Shark Bay in Western Australia, these odd formations aren’t rocks—they’re stromatolites, and they were built over millennia by single-celled cyanobacteria (also known as blue-green algae). 4,000 to 6,000 years ago, a huge bank of seagrass began to block the tidal flow into Hamelin’s Pool, which meant that the water became twice as salty as the open ocean. Animals like snails and chitons that would usually feed on the algae couldn’t survive, so the blue-green algae began to flourish. Gathered in colonies, they trapped sediment with their sticky surface coatings. This sediment reacted with calcium carbonate in the water and formed limestone, essentially creating a living fossil—this limestone is alive, its top surface layer teeming with active cyanobacteria. The limestone builds up slowly at a rate of about 1mm per year. The stromatolites in Shark Bay are estimated to be between 3,000 and 2,000 years old, but they’re similar to life forms in Precambrian times, 3.5 billion years ago, at the dawn of complex organisms. There are over 50 kinds of cyanobacteria in Shark Bay, and one is thought to have descended from an organism that lived nearly 2 million years ago, making it a part of one of the longest biological lineages.

(Image Credit: 1, 2)

zuperblog
dorkysweater:

wow, berry. what have you done in the past few months??
FUCKING BREED. GET MY 3DS STOLEN. THANK THE LORD FOR POKÉBANK. 
anyway hi i’m doing a giveaway ~*~*~ happy easter
i have 5 shiny togepi and 5 shiny chansey. i also have all 3 shiny regis for the top three winners. here’s an imgur album with pictures of each separate pokemon. 
WINNER #1 SHALL RECEIVE: 
one regi of your choice
one shiny togepi
one shiny chansey
WINNER #2 SHALL RECEIVE: 
one of two leftover regi
one shiny togepi
one shiny chansey
WINNER #3 SHALL RECEIVE:
the last regi
one shiny togepi
one shiny chansey
i’ll be contacting runner ups to receive their togepi/chansey. this means there’s a total of 7 WINNERS wow fun
RULES
gotta have x or y w/ wi-fi and trading capabilities
you gotta have your ask box open and easy to be seen
follow me i post 80% pokemon you’ll be ard
REBLOGS ONLY i’m using a random number generator and going to that note to choose winners if it’s a like i’ll skip you and move on
i’ll be publicly announcing winners so you gotta be okay with that
i can nickname the togepi and the chansey 
winners will have 24 hours to respond
i’m picking winners 12 AM EST on the 24th. 
GOOD LUCK 

dorkysweater:

wow, berry. what have you done in the past few months??

FUCKING BREED.
GET MY 3DS STOLEN.
THANK THE LORD FOR POKÉBANK. 

anyway hi i’m doing a giveaway ~*~*~ happy easter

i have 5 shiny togepi and 5 shiny chansey. i also have all 3 shiny regis for the top three winners. here’s an imgur album with pictures of each separate pokemon. 

WINNER #1 SHALL RECEIVE: 

  • one regi of your choice
  • one shiny togepi
  • one shiny chansey

WINNER #2 SHALL RECEIVE: 

  • one of two leftover regi
  • one shiny togepi
  • one shiny chansey

WINNER #3 SHALL RECEIVE:

  • the last regi
  • one shiny togepi
  • one shiny chansey

i’ll be contacting runner ups to receive their togepi/chansey. this means there’s a total of 7 WINNERS wow fun

RULES

  • gotta have x or y w/ wi-fi and trading capabilities
  • you gotta have your ask box open and easy to be seen
  • follow me i post 80% pokemon you’ll be ard
  • REBLOGS ONLY i’m using a random number generator and going to that note to choose winners if it’s a like i’ll skip you and move on
  • i’ll be publicly announcing winners so you gotta be okay with that
  • i can nickname the togepi and the chansey 
  • winners will have 24 hours to respond
  • i’m picking winners 12 AM EST on the 24th. 

GOOD LUCK