JEB -- Enstipp et al. 204 (23): 4081 Figure IG2

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)

Fig. 2. Electrocardiogram (ECG) record and instantaneous heart rate during individual deep and shallow dives of one double-crested cormorant. Top, the ECG during a deep dive; bottom, the ECG during a shallow dive. Corresponding heart rates (beats min^–1) are shown in the centre. Submersion and emersion are indicated by the descending and ascending arrows, respectively.