<p><strong>Fig. 4.2.</strong> (<strong>A</strong>) Fish—one individual, such as a convict tang (<em>Acanthurus </em><em>triostegus</em>) by itself</p>

Fig. 4.2. (A) Fish—one individual, such as a convict tang (Acanthurus triostegus) by itself

Image courtesy of Brian Gratwicke, Flickr