Activity for Noldor130884
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Possible cause of a world without flying animals Consider an earth-like world without any flying species. What could be the possible (I'm looking for a physics or chemistry/biology answer) cause of this? Set aside trivial solutions as "random mass extinctions" and so on, I am willing to accept an answer that especially targets flying beings. (more) |
— | over 7 years ago |