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Dall's porpoise

Dall's porpoise
Susan E Adams (https://www.flickr.com/photos/susanad813/) / CC BY-SA 2.0 · resizedfile
Water. A wild study measured speeds from an inflatable boat and clocked Dall’s porpoises at up to about 13 mph (22 km/h). At speed the porpoise can throw a fan of spray behind it. A frequently cited 34 mph (55 km/h) figure was an estimate of a possible burst.
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