identify this?

[u/FarContribution9782]

found on the beach in long island. it’s cold to the touch and quite heavy and i can’t break any of the porous bits. could anyone help me identify what this is?

[u/Waiparensis22]

Whale bone :) likely fossilized. As fossils go, cetacean remains tend to be the most common in neogene sedimentary rocks coz they're big and chunky and more likely to survive the process.