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A very simple introduction to the location, climate, special geographic features, and incredible animal life unique to the Arctic Ocean. Additional features to aid comprehension include fact-filled callouts, detailed photographs, a table of contents, a phonetic glossary, sources for further research, and an introduction to the author. The world's oceans cover more than 70 percent of Earth's surface. But how much do children really know about our planet's...
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A very simple introduction to the location, climate, special geographic features, and incredible animal life unique to the Atlantic Ocean. Additional features to aid comprehension include fact-filled callouts, detailed photographs, a table of contents, a phonetic glossary, sources for further research, and an introduction to the author. The world's oceans cover more than 70 percent of Earth's surface. But how much do children really know about our...
Author
Series
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English
Description
A very simple introduction to the location, climate, special geographic features, and incredible animal life unique to the Indian Ocean. Additional features to aid comprehension include fact-filled callouts, detailed photographs, a table of contents, a phonetic glossary, sources for further research, and an introduction to the author. But how much do children really know about our planet's main bodies of water? Oceans of the World gives readers the...
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Life in the World's Oceans volume 24
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English
Description
Within their own species, marine mammals have developed sophisticated communication. In captivity, we know they can be trained to learn rules, which indicates higher cognitive function. And even in the wild, we have documented some extraordinary instances of learning and cultural transmission of information. But is their intelligence comparable to our own?
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Life in the World's Oceans volume 20
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English
Description
With plastic and nylon lines and nets becoming common in the last century, by-catch became an even greater problem for the marine mammals. When the media picked up the story in the mid-1960s, the public became engaged, and the Marine Mammal Protection Act was passed in 1972. But whale entanglement remains a problem, and some argue that even whaling was far less cruel.
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Life in the World's Oceans volume 12
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English
Description
While the reptilian evolution of the amniotic egg allowed animals to move completely from the sea onto land, some reptiles retained strong marine ties. These include sea turtles and sea birds whose wide variety of adaptations allow for drinking saltwater, remaining underwater for long periods, and flying great distances using very little energy.
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Life in the World's Oceans volume 2
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English
Description
No matter where you live, your climate, weather, and even available foods are determined to a great extent by ocean circulation. The uneven heating of the Earth by the Sun and the Coriolis effect result in vast circulation cells of air above the Earth, the movement of huge water masses in the oceans, and resultant "hot spots" of marine life.
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Life in the World's Oceans volume 29
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English
Description
Our high-tech use of the ocean for food, transportation, and energy has far-reaching effects, particularly on certain species. Focusing on issues from noise pollution to microplastics, we can mitigate our impact to provide better futures for ourselves as well as for marine life. The work begins with understanding the extent of our true impacts.
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Life in the World's Oceans volume 3
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English
Description
How and where did life begin on Earth? The existence of both photosynthetic and chemosynthetic food chains points to the possibility that life could have originated through two different paths. While many questions remain unanswered, two things seem certain: Life began in the oceans, and bacteria are the most successful organisms on the planet.
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Life in the World's Oceans volume 11
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English
Description
Fish certainly have good reason to fear these top-of-their-game predators, with their multiple rows of teeth and ability to detect electrical current better than any other animal. But while four species have been known to assault humans with no provocation, almost 99 percent of the many hundred shark species would rather swim away from us than attack.
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Life in the World's Oceans volume 28
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English
Description
Most of us seem to have a natural instinct to want to help a stranded marine mammal, but it requires very specific skills to render aid without causing further stress and harm. Even with the best intentions and professional assistance, not all animals can be saved. What can we learn from these strandings-no matter how they end-and where are they most likely to occur?
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Life in the World's Oceans volume 17
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English
Description
Not surprisingly, deep-diving marine mammals have evolved a physiology very different than our own. Adaptations including those related to blood chemistry, the location of stored oxygen, a variable heart rate, and articulated rib cages support the ability to go deep and stay long. But what about rising back up to the surface? How do they avoid getting "the bends"?
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Life in the World's Oceans volume 18
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English
Description
Sound travels much better in water than in air. In fact, low-frequency waves, such as those produced by certain whales, can travel through water uninterrupted for hundreds or even thousands of kilometers, allowing the animals to be "in touch" with their group over vast distances. But what happens when human-generated sound gets in the way?
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Life in the World's Oceans volume 23
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English
Description
With 60 million years of evolution on their side, marine mammals have adapted to the widest possible variety of marine ecological niches. Some live only in rivers or lakes, others only in waters over the continental shelves, and some in the open ocean. A few are even adapted to live at the poles.
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Life in the World's Oceans volume 16
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English
Description
For all practical purposes, terrestrial mammals live on a plane. Marine mammals, on the other hand, navigate a more viscous, three-dimensional environment with all its opportunities and challenges. We understand their propulsion mechanisms fairly well. But how do they control their buoyancy to position themselves in the water column? We don't yet have the answers.
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