Could a marine species survive a mass extinction by adapting to the deep ocean?
This is something I’ve wondered for years. We know the deep ocean is still largely unexplored and we’re still discovering new species.
Is there any scientific reason an ancient marine lineage couldn’t have survived and slowly evolved in the deep ocean for millions of years? I’m not saying it definitely happened, I’m just wondering if there’s a biological reason it would be impossible, or if it’s just considered extremely unlikely because we’d expect to have found evidence by now.
Genuinely curious to hear what people who know more about palaeontology or marine biology think.