spectratg
Senior Member
- Location
- Adamstown, MD
While it's generally accepted that all life on Earth shares a common ancestor, some variations in genetic code and biochemical pathways have been observed, suggesting that life may have evolved in different lineages. The idea of a single Last Universal Common Ancestor (LUCA) is widely supported by the shared genetic code, biochemical pathways, and genes across all living organisms. However, the possibility of independent origins or alternative evolutionary paths remains a topic of ongoing research.
The idea of a "shadow biosphere" suggests that there might be other forms of life that evolved independently and may exist in separate ecological niches, not readily recognized by current scientific understanding.
Researchers in the scorching deserts of Namibia, Oman, and Saudi Arabia uncovered a strange feature in the rocks that looked like thin, orderly tubes running through marble and limestone. But these structures don’t resemble any known geological process which is why researchers believe they may be the work of an unidentified form of microbial life.
The idea of a "shadow biosphere" suggests that there might be other forms of life that evolved independently and may exist in separate ecological niches, not readily recognized by current scientific understanding.
Researchers in the scorching deserts of Namibia, Oman, and Saudi Arabia uncovered a strange feature in the rocks that looked like thin, orderly tubes running through marble and limestone. But these structures don’t resemble any known geological process which is why researchers believe they may be the work of an unidentified form of microbial life.
