She agrees with his observation - it must be HUGE. "...Larger than anything that has any right to exist." She doesn't know enough about marine biology to say about blue whales, so she amends: "On land, at least.

...Given how slow it is, I would also assume that it has a severely slowed down metabolism at the moment." Or, to put it like this: "In other words, it's probably asleep - might even be hibernating.

I wonder how long it has been asleep." After all it's not like they've seen any giant animals run around Mossgate even before the winter, and they would probably have noticed if it was building tunnels underground, surely that would have caused vibrations that could be felt miles away-

WAIT.

"...I wonder if it was awake last February."