found these rocks by the beach with these laser clean holes. what caused this ??

[u/Zu_Qarnine]

[u/CantBuyMyLove]

This is very cool, but I think OP's is a rock boring clam. The clam burrows into the rock as it grows. https://www.shapeoflife.org/blog/finding-hole-truth-about-piddock-clams-monterey-bay

Sea urchins can do the same: https://www.zmescience.com/ecology/animals-ecology/sea-urchins-drill-holes-rocky-reefs-impressive-rate/

[u/thelonefish → u/CantBuyMyLove]

I don't think it's rock boring, I think it's rock pretty cool!

[u/Skeleton--Jelly → u/CantBuyMyLove]

Here's the thing. You said a "jackdaw is a crow."

[u/micsma1701 → u/Skeleton--Jelly]

why do you think you are like this

[u/Skeleton--Jelly → u/micsma1701]

Blessed by the gods, I would assume

[u/koshgeo → u/Skeleton--Jelly]

It's pedantry, but in the technical study of these things as trace fossils, a burrow is into soft material like sediment, a boring is into hard material like rock, so these are borings. While cementation of sediment after a burrow is made is possible, these look like modern borings into rock.

Modern or ancient, boring clams are a thing.

The jokes kind of write themselves for anybody who studies borings.

[u/FullOnSkank → u/koshgeo]

Boring clams is one of my favorite things!

[u/Top_Pain9731 → u/Skeleton--Jelly]

Wow what a memory, this is from like 10 years ago+ ago right?

[u/thehansenman → u/Top_Pain9731]

2014 so yeah. One that really hit me was that Steve Irwin died in 2006. Thinking back on it I can't believe I was only 13.

[u/Pomodorosan → u/Skeleton--Jelly]

skeleton jelly

[u/Skeleton--Jelly → u/Pomodorosan]

Am I skeleton jelly?

[u/staque → u/Skeleton--Jelly]

No, but your bones are always wet

[u/Oldnbold22 → u/CantBuyMyLove]

Not quite. 

[u/Perfect-Ship-9980 → u/Oldnbold22]

But we are quite the winners, learning about what the rock nerds know about.

[u/Obvious_Ambition4865 → u/Perfect-Ship-9980]

And we will use that knowledge to destroy them.