Post History
I've been slacking lately on biology questions, so I'll try my luck on this one. Good news! These things aren't so far-fetched! Meet the giant tube worm (see also here). (Original image source...
Answer
#1: Attribution notice removed
by
System
·
2020-06-01T14:13:43Z (over 4 years ago)
Source: https://worldbuilding.stackexchange.com/a/11642 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/