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> Did you know that albatrosses have a higher heart rate while resting on the beach than while flying? Even if flying takes very little effort as described, wh
by soperj 3y ago
> Did you know that albatrosses have a higher heart rate while resting on the beach than while flying?
Even if flying takes very little effort as described, why would the resting heart rate be higher?
- yMEyUyNE1 3y agoMaybe the difference is free floating bouyancy in air and actively opposing gravity on the ground.
- yMEyUyNE1 3y agoWhy bother to downvote, if you can't state the reason?
- ModernMech 3y agoMaybe the bird is more nervous on the beach than flying around on the open water. But it’s not even that flying takes little effort, it’s that it takes no effort. The bird does not use any of its own potential energy for flight, it extracts it from the wind gradient over the ocean in the course of flying, and turns it into kinetic energy. It would tire too quickly otherwise, and would be unable to make the transpacific journey to breeding grounds.