Are dolphins and porpoises the same

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are dolphins and porpoises the same

Whales, Dolphins and Porpoises by Mark Carwardine

My Review
Now as you can tell I love whales, thats why I read this book. Whales are the largest animals on earth some can weigh up to 200 tons! Its like mother nature said one day hey lets make the most amazing but animal I can think of and puff, there was a whale. But enough about how much I love whales lets get to the facts. Whales are the largest mammals on earth by far, elephant can kiss there butts goodnight because there is a real giant tonight. Although many people would think the Blue Whale to be my favorite, well its not its not even my second its my third. My favorite whale is the amazing Sperm Whale its huge, unique, has sharp teeth ( which is odd for a whale ), and it hunts only the best giant squid. Which explains all the circle shaped scars on its body. It dives 3,280 feet that would crush most animals. Which makes the whales just that more unique. Now the Sperm whale is also weird because of its blow hole. It seems to be on the right side of its face not the middle unlike most whales where the blow hole is in the middle of the head which gives the Sperm Whale another unique quality also the unusually ruff skin which is for going face to face with the most powerful squad in the world and handling the razor sharp teeth on the tentacles. I also seem to love the unique colors of the Fin Whale it is also the smallest Whale in the ocean but it is very beautiful and there is a lot of them because of there small size not very many whale hunters wasted there time with them so the thrived. unlike the other whales that most face extinction. which is a really depressing such beautiful creatures have to surfer for there blubber. But thankfully the Japenese have stopped hunting these harmless, beautiful creatures.
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How smart are dolphins? - Lori Marino

What's the difference between dolphins and porpoises?

Porpoises are a group of fully aquatic marine mammals, all of which are classified under the family Phocoenidae , parvorder Odontoceti toothed whales. There are seven extant species of porpoise. They are small toothed whales that are very closely related to oceanic dolphins. The most obvious visible difference between the two groups is that porpoises have shorter beaks and flattened, spade-shaped teeth distinct from the conical teeth of dolphins. Porpoises, and other cetaceans , belong to the clade Cetartiodactyla with even-toed ungulates , and their closest living relatives are the hippopotamuses , having diverged from them about 40 million years ago. Porpoises range in size from the 1.

Dolphin or porpoise? Porpoise or dolphin? Even the names are often used interchangeably in everyday language. Porpoises belong to the Phocoenidae family. There are only six species of porpoises in the entire world, two of which live in B. Oceanic dolphins, however, belong to the large Delphinidae family, which consists of at least 36 species worldwide! The main distinguishing feature is actually their teeth.

Dolphins and porpoises delight us with their playful antics and warm our hearts with their friendly faces.
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10 Differences between Dolphins and Porpoises

Dolphins and porpoises are different. You probably figured this was true, even though when you picture them in your mind's eye, they look exactly the same. Admit it. But it turns out, dolphins and porpoises are very different. Both are highly intelligent and communicate by sonar, which is produced through a bulbous structure on the front of their heads called a melon. But if you were to look at a dolphin and a porpoise side by side, you'd likely say to yourself, "oh, that's not what I thought a porpoise looked like at all! The most obvious physical difference between the sleek, elongated dolphin and the more portly porpoise can be observed front and center on their faces.

Dolphins have longer noses, bigger mouths, more curved dorsal fins, and longer, leaner bodies than porpoises. The Northeastern Offshore Spotted Dolphin, shown here, has a falcate, or sickle-shaped dorsal fin and light spotting on the belly. The orca, or killer whale, for example, is actually the largest member of the dolphin family. Dolphins are by far more prevalent than porpoises. Most scientists agree that there are 32 dolphin species plus five closely related species of river dolphin and only six porpoise species. The harbor porpoise has small pointed flippers and no beak.

Collectively, whales, dolphins and porpoises are known as cetaceans. Cetacean species are divided into two groups. The main differences with porpoises are that they are usually smaller than other toothed whales and instead of cone-shaped teeth they have flat, spade-shaped teeth. Additionally, ALL baleen whales have two blowholes whereas toothed whales only have one. The biggest difference is size, with all species of porpoise being that much smaller than their dolphin cousins. Porpoises don't have the pronounced beak that most, but not all dolphins have and they also have different shaped teeth. Porpoise teeth are spade-shaped whilst dolphins are conical.

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