Timeline for Plausibility of not noticing alien life on Earth
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Apr 29, 2021 at 19:01 | comment | added | John | No there is thousands of feature they have that identify them as earth life, nucleotides, amino acids, codons, mitochondria, ect, ect. If many of these things were not true alien origin would be a reasonable conclusion. As they sit right now they could be easily determined to be earth origin and they fit very well in to our known models of the evolution of earth life. | |
| Apr 29, 2021 at 18:50 | history | edited | Andrew Brēza | CC BY-SA 4.0 |
Edited for clarity
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| Apr 29, 2021 at 18:02 | comment | added | Andrew Brēza | @John yet if they came from an alien planet, they'd be alien species. The only thing that makes them regular humdrum species is that they came from Earth. | |
| Apr 29, 2021 at 17:57 | comment | added | John | There are some very big differences between those an and alien species, for one all of those you have shown use the same amino acids and nucleotides as us. There are plenty of non-photosynthetic parasitic plants. Nothing you have shown is surprising to an actual biologist. | |
| Apr 29, 2021 at 17:18 | history | answered | Andrew Brēza | CC BY-SA 4.0 |