ナショナルジオグラフィックのインスタグラム(natgeo) - 5月9日 05時49分

Video by @bertiegregory. The biggest bird in the world (based on wingspan) glides effortlessly over the waves 100s of miles from land in the South Atlantic Ocean. Scientists put heart rate monitors on these massive birds to gauge their energy expenditure during different activities. The study found that if the wind direction was favorable for the direction the wandering albatross wanted to travel, their heart rate was not much higher than when they’re sat on land resting. This shows that their 11ft wingspan combined with ultra efficient flying techniques allow flight with very little extra energy cost. Nice one nature. We were lucky enough to encounter this beautiful bird during our 6 day crossing to the Island of South Georgia. Shot for a new @ナショナルジオグラフィック online series coming soon! Follow @bertiegregory for more wildlife adventures.

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