If the mice from Island A and the mice from Island B were placed together, what would likely happen? 

(A) The mice would mate, but it is impossible to predict jaw angle.

(B) The mice would mate, and the jaw angle would be approximately 27°.

(C) The mice would mate, and the jaw angle would be either 21° or 32°.

(D) The mice would not be capable of mating.

A chain of three small islands was found to be the home to a small species of mouse. The angle of jaw opening was found to vary significantly. The average size angle of the maximal jaw opening found in mice at 10 locations on the three small islands is shown in Figure 1, below.

Transcribed Image Text:

Island A A1: 22° A2: 21° A3: 22° Island B B4: 32° B1: 31° Island C B3: 32° B2: 34° C1:219 €3: 21° C2: 21°