It's a fantasy role-playing game.

DM: You are Caduceus Clay, a firbolg cleric . You are the member of the famous group of adventurers. Previously, There are two vines, one around Nott and one trying to wrap up Jester. They prove to be difficult opponents, dealing significant amounts of physical and poison damage, and grappling and restraining their targets.
DM: This looks to be a sister hatchery room to the one on the south. This one does not contain a body, but just other clusters of eggs.
Player: Is it possible to tell if these eggs might hatch anytime soon, or are they that's left of them?
DM: Make a nature check.
Player: All right. Let's do that. My nature is terrible, which is ironic. But I rolled a natural 20, so that should do.
DM: With what experience you have with seeing much smaller snakes and other type creatures in nature, you're not really fully understanding the gestation period of yuan-ti. These eggs don't look like they're ready to hatch in the next few days or so. There's still some time before the oldest clutches of--
Player: Is this true? Both look similar, both seem--
DM: Yeah, I'd say so.
