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Porpoises

porpoises

mammals of the family phocoenidae comprising four genera and six species found in the north pacific ocean and both sides of the north atlantic ocean and in various other seas. They differ from dolphins in that porpoises have a blunt snout and a rather stocky body while dolphins have a beaklike snout and a slender, streamlined body. They usually travel in small groups.


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fastest animal

... per hour—and the biggest, weighing in at 345 pounds. Fastest Mammal (land) Cheetahs can run up to 70 miles per hour. Fastest Mammal (water) Dall porpoises can swim up to 35 miles per hour. Fastest Fish Sailfish can swim up to 68 miles per hour.

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by emus are coming
Mon Apr 16, 2007 9:35 am
 
Forum: Zoology Discussion
Topic: fastest animal
Replies: 40
Views: 39857

mammals

... mammals are covered with fur, although the length and coarseness of the hairs varies. Notable exceptions to this rule are whales, dolphins, and porpoises. These mammals are entirely aquatic, spending all their time in water, and they don't have fur because hairs create drag in the water. Olympic ...

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by kiekyon
Mon Apr 24, 2006 1:13 pm
 
Forum: Zoology Discussion
Topic: mammals
Replies: 10
Views: 4939

Killer whales are orcas

... they stay in deeper waters most of the time). Transient orcas are the true 'killer' whale, they hunt and eat mammals like seals, sea lions, and porpoises. I have never heard of a transient eating a person, although there was a story out of Alaska this summer of a transient bumping a boy that ...

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by Jass
Tue Nov 01, 2005 3:31 am
 
Forum: Zoology Discussion
Topic: Orca whale
Replies: 25
Views: 14414

Convergant Evolution

I heard somewhere that orca's, Dolphins, and porpoises all shared a common land ancestor, so could that still apply to the convergant evolution of a shark from which is much more primitive? :?: :?:

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by 123Herpatology
Tue Oct 04, 2005 3:50 am
 
Forum: Zoology Discussion
Topic: Sharks and Dolphins
Replies: 19
Views: 17459


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