(1) As we porpoise back to shore, I know that I can go deeper.

(2) The boat began to porpoise badly

(3) Several adelies are porpoising between the new islands and the ice.

(4) Finally, as the relative thrust decreases, the gains due to porpoising also decrease.

(5) But down by the water's edge porpoising adelie penguins are jumping ashore clean, wet and plump from the icy Southern Ocean.

(6) Interrupted forms of locomotion, including wave-riding and porpoising when near the water surface or gliding when descending on a dive, enables marine mammals to mitigate some of these costs.

(7) Cetaceans also are hunted and eaten, the most common being porpoises , killer whales, and pilot whales.

(8) Then potential menace turned to pure joy as two more orcas joined the first and together they porpoised toward the setting sun.

(9) Dolphins and porpoises are examples of odontocetes, as are belugas, narwhals, killer whales, sperm whales, and beaked whales.

(10) There are over 80 species of cetaceans, marine mammals such as porpoises , dolphins and whales, but the Norwegians have traditionally hunted minke.

(11) This fish stripped virtually all the line from the reel and resulted in a fair bit of time to retrieve and then it was off again porpoising across the water - a magnificent sight.

(12) More than 300,000 whales, dolphins and porpoises - or cetaceans - are estimated to die every year from entanglement in fishing gear, more than from any other cause.

(13) Since that publication several studies documented porpoising behavior at high speeds.

(14) Fishery managers believe that a few low-decibel pings in the ocean, usually inaudible 300 meters away, have to be better than killing porpoises in Maine or sperm whales in California.

(15) Sea lions gain speed by porpoising , leaping clear of the water and then gliding near the water's surface to minimize resistance.

(16) You may spot seals and otters and, if you're lucky, porpoises and killer whales on their way from the Atlantic and to the Irish Sea.

(17) Whales, dolphins, porpoises , seals and sea lions receive protection in the U.S. under the Marine Mammal Protection Act of 1972.

(18) Swimming often includes porpoising (repeatedly breaking the water's surface with enough momentum to lift the bird into the air for about one meter.)

(19) The crows nest has become an ideal lookout post for sighting dolphins, whales, porpoises , seabirds and turtles.

(20) The shores are playgrounds for otters and seals while porpoises and killer whales sweep past on their way between the Atlantic and the Irish Sea.