Timeline for Via what mechanism could a humanoid entity regrow multiple sets of teeth throughout its life?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 1, 2021 at 4:02 | vote | accept | KEY_ABRADE | ||
| Aug 1, 2021 at 4:02 | vote | accept | KEY_ABRADE | ||
| Aug 1, 2021 at 4:02 | |||||
| Jul 28, 2021 at 20:58 | comment | added | DWKraus | @Bennie In evolutionary time, any trait requiring an organized structure is subject to continuous mutation. Traits devolve over evolutionary time, as genes and proteins are altered and have no negative consequences. So while you are not strictly wrong, retaining a complex structure over millennia without selective pressure is like rolling dice over and over again and never rolling a one. | |
| Jul 28, 2021 at 18:50 | comment | added | Bennie | @DWKraus Incorrect. Unless there is a selective pressure against an existing part (as in, those who produce it are less successful than those that don't) whether it persists or not is random. Ex. five fingers is not particularly more useful than 4, it's simply ancestral for the 5th one to be there. | |
| Jul 28, 2021 at 2:31 | comment | added | DWKraus | @KEY_ABRADE Most humans didn't lose that many teeth while our species was evolving, or they didn't live long enough o lose more. Anything requiring extra structure devolves unless it has a need to be present. | |
| Jul 28, 2021 at 0:57 | vote | accept | KEY_ABRADE | ||
| Jul 28, 2021 at 15:38 | |||||
| Jul 28, 2021 at 0:37 | history | answered | LSerni | CC BY-SA 4.0 |