David_O
December 8, 2020, 12:39pm
21
I (sort of) am a crabologist and that makes a lot of sense. There’s a decent tidal range in Vietnam so big flat sandy beaches where you have to scuttle for miles to stay in the sea or find a rock would be a big crab buffet for gulls unless you evolve this behaviour.
I’m definitely not a sandologist but I’m still astonished that a handspan (?) sized roof of sand stays up, dry or not. Unless the crab is doing this below the surface:
The Basilica Cistern, or Cisterna Basilica (Turkish: Yerebatan Sarnıcı, "Subterranean Cistern"), is the largest of several hundred ancient cisterns that lie beneath the city of Istanbul, Turkey. The cistern, located 150 metres (490 ft) southwest of the Hagia Sophia on the historical peninsula of Sarayburnu, was built in the 6th century during the reign of Byzantine Emperor Justinian I. Today it is kept with little water, for public access inside the space.
This subterranean cistern, in Greek kin...
4 Likes
(preliminary card text:
"tap Chitinous Hydromancer: Chitinous Hydromancer receives +0/+1 for each red land you have in play until end of turn.
If you have no blue lands, sacrifice Chitinous Hydromancer")
9 Likes
David_O
December 8, 2020, 1:54pm
23
Think this is a probably a sand bubbler crab. Apparently that roof stays up - trapping a bubble of air for the crab to breathe - even when the tide comes back in.
See text
Sand bubbler crabs (or sand-bubblers) are crabs of the genera Scopimera and Dotilla in the family Dotillidae. They are small crabs that live on sandy beaches in the tropical Indo-Pacific. They feed by filtering sand through their mouthparts, leaving behind balls of sand that are disintegrated by the incoming high tide.
Sand bubbler crabs are small crabs, around 1 cm (0.4 in) across the carapace, and they are characterised by the presence of "gas windows" on the merus of the legs; in ...
5 Likes
So the bubble is actually much smaller than it appears in the video.
If you consider that the hole is only 2 or 3 cm across, it looks a lot more plausible.
4 Likes
anothernewbbaccount:
But what does this mean?
I didn’t mean to imply it was significant in any way. I was just making the observation that 23 is a prime number.
TIL!
Google image search: what are sand-drip castles
2 Likes
I wasn’t expecting you to impart any meaningful wisdom in this context.
But I’d like the fish to tell us why 23!
2 Likes
system
Closed
December 12, 2020, 11:03pm
28
This topic was automatically closed after 5 days. New replies are no longer allowed.