Ooow... [At last, the effects of the initial tug die down and the bear stops convulsing around Holmes's thumb, instead focusing solely on its main purpose.] Yes, yes. It's to alert me that its significant other was activated, so to speak. The bear and the bunny are a pair, responding to one another. They're meant to communicate.

[Sure enough, while Holmes's words are already audible in the normal sense, they're being duplicated in a softer tone by the bunny.]