Activity for Vivian Colenâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
What could cause human females to have an yearly menstrual cycle in the future? I'm working on a story that is set in the future where human females have evolved to have a fertile period once a year for two months. Is such an evolution scientifically feasible? (more) |
— | over 7 years ago |