Term
General Information (Species) A
"Biologists recognize three distinct families: the true porpoises, with six species; the river dolphins, with five freshwater marine species, and the true dolpins, with more than 30 marine species."
Compton's Encyclopedia page 239
"Dolphin and Porpoise" |
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Definition
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Term
General Information (Species) A
"Although they are similar in appearance, a dolphin is distiguished from a porpoise by its beaklike snout; a porpoise has a short, blunt snout. The teeth of dolphins are cone-shaped while those of porpoises are flatter."
Compton's Encyclopedia page 239
"Dolphin and Porpoise" |
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Definition
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Term
General Information (Species) A
Dolphins are mammals, meaning they are warm blooded, even when in different temperatures of water. Mother's nurse the young with milk.
Compton's Encyclopedia page 239
"Dolphin and Porpoise" |
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Definition
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Term
General Information (Species) A
"The largest dolphins reach a length of about 13 feet, but most species are 7 to 10 feet long."
Compton's Encyclopedia page 239
"Dolphin and Porpoise" |
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Definition
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Term
General Information (Species) A
"True dolphins belong to the family Delphinidae; true porpoises to the Phocoenidae; and river dolphins to the Platanisidae. All are toothed whales."
Compton's Encyclopedia page 239
"Dolphin and Porpoise" |
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Definition
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Term
General Information (Species) A
"Dolphins and porpoises are noted for their intelligence and learning abilities."
Compton's Encyclopedia page 239
"Dolphin and Porpoise" |
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Definition
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Term
General Information (Habitat) A
"The common dolphin (Delphinus delphis) is also a species found worldwide in warm costal waters and is a frequent inhabitant of the Mediterranean Sea and the Black Sea."
Compton's Encyclopedia page 240
"Dolphin and Porpoise" |
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Definition
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Term
General Information (Biology) A
"Dolphins are relatively long-lived, with some individuals living more than 20 years."
Compton's Encyclopedia page 240
"Dolphin and Porpoise" |
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Definition
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Term
General Information (Biology) A
"The female offspring, called a calf, after a gestation period of 8 to 11 months, depending on the species. As soon as the calf is born, the mother nudges it to the surface for its first breath of air."
Compton's Encyclopedia page 240
"Dolphin and Porpoise" |
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Definition
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Term
General Information (Habitat) B
"They live in the water, with most of the them living in saltwater."
BioExpedition Page 1
"Dolphin Facts and Information" |
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Definition
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Term
General Information (Species) B
According to BioExpedition, there are 41 different species of dolphin.
BioExpedition Page 1
"Dolphin Facts and Information" |
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Definition
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Term
General Information (Species) B
"Of those 41 species, 31 of them are marine dolphins. There are 6 speicies that are classified as porpoises and the other 4 species are river dolphins."
BioExpedition Page 2
"Dolphin Facts and Information" |
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Definition
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Term
General Information (Biology) B
"There are certain species that are able to leap as high as 30 feet out of the air."
BioExpedition Page2
"Dolphin Facts and Information" |
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Definition
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Term
General Information (Biology) B
"They are generally blue or gray in color with white on the belly. Some of the species have tints of pink, yellow, and even black."
BioExpedition Page2
"Dolphin Facts and Information" |
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Definition
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General Information (Biology) B
"They don’t use their teeth to chew food, as they swallow it whole. They can use the teeth though to grab food. The species determines how much food that they will consume daily, but it can be up to 30 pounds. They usually work as a teeth to round of food."
BioExpedition Page2
"Dolphin Facts and Information" |
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Definition
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General Information (Biology) B
"The largest ones are 11 tons and the smallest ones are 90 pounds. The longest lengths are up to 30 feet and the smallest ones are 4 feet long."
BioExpedition Page2
"Dolphin Facts and Information" |
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Definition
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General Information (Biology) B
"Most dolphin species have great vision and they hear well too. They have very small ears that are located behind the eyes. They are believed to be able to hear 10 times better than the average person."
BioExpedition Page2
"Dolphin Facts and Information" |
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Definition
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Term
General Information (Biology) B
"The one sense that dolphins can’t rely on very well is smell."
BioExpedition Page2
"Dolphin Facts and Information" |
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Definition
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Term
General Information (Behavior) B
"They use touching often to bond within their pod and to learn about their surroundings."
BioExpedition Page 3
"Dolphin Facts and Information" |
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Definition
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Term
General Information (Dangers) B
"Pollution in the water exposes them to plastic, chemicals, and other elements that aren’t good for them. Noise pollution due to industrialization and boating can cause high levels of stress. Commercial fishing can cause them to get tangled up in nets."
BioExpedition Page 3
"Dolphin Facts and Information" |
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Definition
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General Information (Dangers) B
"In some locations, it is illegal to harm dolphins in any way. Yet these laws aren’t fully enforced so there continues to be problems with hunting them for food and for thrill seekers to be able to have an exotic hunt."
BioExpedition Page 3
"Dolphin Facts and Information" |
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Definition
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Term
General Information (Habitat) C
"They tend to stick to the shallow areas of the water found along the continental shelves."
Dolphins-World Page 1
Dolphin Information |
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Definition
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Term
General Information (Behavior) C
"Typically, dolphins live and travel in groups ranging from 2-40 dolphins. Research has also shown dolphin pods as large as several hundred members."
Dolphins-World Page 2
Dolphin Information |
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Definition
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General Information (Behavior) C
"There are 43 species of dolphins found in the world. There are 38 marine dolphins, and 5 river dolphins."
Dolphins-World Page 3
Dolphin Information |
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Definition
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Term
General Information (Biology) C
"They tend to live in the shallow water by the coast and they tend to live in warmer locations. The name dolphin comes from the word womb, and it is believed to be the Greek saying for fish with a womb."
Dolphins-World Page 3
Dolphin Information |
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Definition
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Term
General Information (Behaviors) C
"The young are called calves and the female adults are cows. The male adults are bulls and a group of them is often called a pod. Sometimes, you may hear them referred to as a school."
Dolphins-World Page 3
Dolphin Information |
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Definition
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Term
General Information (Behaviors) C
"There are plenty of differences among the species of dolphins and that is why they have been broken down in to various categories."
Dolphins-World Page 4
Dolphin Information |
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Definition
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Term
General Information (Behaviors) C
"slight variations that have been noted."
Dolphins-World Page 4
Dolphin Information |
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Definition
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Term
General Information (Biology) C
"differences too including some having a curved dorsal fin instead of straight and changes to the snout."
Dolphins-World Page 4
Dolphin Information |
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Definition
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Term
General Information (Behavior) C
"The type of dolphin you will see in a given area depends on environmental factors such as enough food and the temperature. "
Dolphins-World Page 4
Dolphin Information |
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Definition
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Term
General Information (Biology) C
"the most common of all dolphins is the Bottlenose Dolphin."
Dolphins-World Page 5
Dolphin Information |
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