Summary
A
small Antarctic lake named Lake Whillans has remained isolated from the outside
world underneath ice. In water samples, John Priscu and his team discovered the
existence of bacteria in about 1/10th of the concentration in the
ocean. Because there is no sunlight reaching them, they cannot perform
photosynthesis, meaning they have other sources of energy. This life may provide
clues to how life may evolve elsewhere in the universe, as the conditions are
similar the jupiter’s moon Europa.
Relevance
This
video talks about microbes, specifically extremophiles evolving to live in cold
areas without sunlight. In addition, it has a organisms isolated from other life
on earth, letting it evolve separately, similar to the genetic drift causing
the evolution on the Galapagos islands.
Author: Sourcefed. Feb 13, 2013.
What is an example of the other sources of energy these bacteria use since they cannot perform photosynthesis?
ReplyDeleteWhat is the average concentration of bacteria in ocean water?
ReplyDelete