Activity for lemmingâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Life on a planet with multiple gas layers Could a terrestrial planet have a stable set of layers of atmospheres, and could different lifeforms evolve within those different layers? This question is inspired by the diversity found on Earth. For example, deep sea organisms evolved without light (and in some cases, without oxygen) and are quit... (more) |
— | about 10 years ago |