Do baby skeletons do a lot of biting/teething from the moment they're born?
"I think this is best for Russ and Bro, since they raised Serif most recently from a baby?"
Underkin Sans (Bro) and Papyrus (Russ) look at each other contemplatively.
"I DON'T RECALL MUCH BITING," Russ says finally. "THERE WAS A LOT OF CRYING. AND SHE WAS LATE TO CRAWL AND HAD A HARD TIME RECOGNIZING FACES, DUE TO HER DAMAGED SOCKET. BUT EVEN SO SHE NEVER BIT US."
"she bit undyne once. but it was when she was a bit older," Bro amends. "an' undyne came up on her blind side too fast. you'd think she might know not to do that, but, her brother baron sure thought it was hysterical."