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Porposing Penguins
I'm not sure where this was taken. I've put it here because near the entrance to Neptune's Bellows was one of the places where I saw penguins doing this.
Several of them swim in a line. Each one traces out a series of S-shaped curves (in the vertical plane) as they seem to go in and out of the water. It's similar to a porpoise and a bit like a human swimmer doing the butterfly stroke.
This is not a multiple exposure showing some kind of time sequence for a single penguin. They swin in a line (or sometimes two parallel lines), sort of playing follow the leader as is indicated here.
(24 Nov 2010)
