Akathisia literally means inability to sit, and is a type of movement disorder in which the patient feels extreme inner restlessness along with a forcible need or desire to be in continuous motion by performing actions such as rocking backwards and forwards when sitting or standing, marching on the spot by lifting feet and also crossing and ...
The earliest evidence for life on Earth is graphite found to be a biogenic substance in 3.7 billion-year-old metasedimentary rocks discovered in western Greenland and microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia.
Fossils of 3.5-billion-year-old microbial communities were discovered in Australia. Credit: Nora Noffke Scientists have found fossil evidence of ancient microbial communities that lived 3.5 billion years ago. The new fossils, described in the journal Astrobiology, may be among the most ancient fossil life forms ever found. This is one of the, or the, oldest fossils ever found. You've got a 3.5-billion-year-old ecosystem, said study co-author Robert Hazen, an earth scientist at the Carnegie Institution for Science in Washington, D.C.