Timeline for How could polycephaly evolve as a byproduct of natural selection?
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Aug 14, 2018 at 5:37 | comment | added | KC Wong | @LorenPechtel Some animals managed that by sleeping with half a brain at a time (en.wikipedia.org/wiki/Unihemispheric_slow-wave_sleep). Two heads are not needed! | |
| Feb 10, 2018 at 5:04 | comment | added | Loren Pechtel | Robert L. Forward's Saturn Rukh comes to mind. They are perpetual fliers, landing is not possible. Thus they have two brains (and two heads) that take turns keeping it aloft. (Now, how it could evolve is another matter... His worlds are interesting but his evolutionary biology wasn't up to his physics.) | |
| Feb 8, 2018 at 16:13 | history | answered | Erdrik Ironrose | CC BY-SA 3.0 |