How much does a male emperor penguin weigh?
Emperor penguin
{'answer_start': array([-1]), 'answer_text': array([''], dtype=object)}
While diving, the emperor penguin's oxygen use is markedly reduced, as its heart rate is reduced to as low as 15–20 beats per minute and non-essential organs are shut down, thus facilitating longer dives.[15] Its haemoglobin and myoglobin are able to bind and transport oxygen at low blood concentrations; this allows the bird to function with very low oxygen levels that would otherwise result in loss of consciousness.[34]