Heart rate intervals for three consecutive respiratory cycles from a free-ranging wild black bear. The heart rate intervals for 34 consecutive beats were recorded on 18-Dec-09 at 12:20 PM for bear 3 (#2213). The ECG inset in the figure corresponds to the first respiratory sequence with the location of the 14.4 second pause indicated by the arrow. This pause is equivalent to a transient heart rate of 4.2 bpm. The average respiration rate during this period was 1.53 breaths/minute (3 breaths occurring over an interval of 117.6 seconds). Each interval on the embedded ECG strip is equal to 0.2 seconds.