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The Clownfish, or Anemonefish, are the subfamily Amphiprioninae of the family Pomacentridae. There are currently 27 species, of which one is in the genus Premnas and the rest are in the subfamily's type genus Amphiprion. The other pomacentrids are called damselfish. |
Clownfish are native to wide ranges of the warm waters of the Pacific; some species ranges overlap others.
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The Great White Shark (Carcharodon carcharias), also known as White Pointer, White Shark or Amaletz, is an exceptionally large lamniform shark found in coastal surface waters in all major oceans. |
Reaching lengths of about 6 meters and a weight near 1,800 kilograms (4,000 pounds).
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The Hippopotamus is a large, plant-eating African mammal, one of only two living and three (or four) recently extinct species in the family Hippopotamidae.
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Hippopotamuses ('hippopotami' is also accepted as a plural form by the OED), also called hippos, are gregarious, living in groups of up to 40 animals.
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The Orca (Orcinus orca), also known as the Killer Whale or Grampus, is the largest member of the oceanic dolphin family. |
It is the second-most widely distributed mammal on Earth (after humans) and is found in all the world's oceans.
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Jellyfish (also called jellies or sea jellies as they are not true fish) are animals that belong to Phylum Cnidaria, included in the class Scyphozoa (from Greek skyphos "cup" and zoon "animal"). |
The name "jellyfish" is also sometimes used for the related classes of medusae (Hydrozoa) and box jellyfish (Cubozoa). |
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Halibut is a type of flatfish. Fishes bearing the name halibut live in both the North Pacific and the North Atlantic Oceans, and are highly regarded food fish. The Pacific halibut, Hippoglossus stenolepis, has been known to attain a
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weight of over 500 pounds (230 kg) and can be eight feet (2.4 m) or greater in length; a very large halibut is known as a "barn door".
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Sturgeon is a genus of fishes, of which some twenty different species are known, from European, Asiatic and North American rivers. They pass a great part of the year in the sea, but periodically ascend large rivers, some in spring to deposit their spawn, |
others later in the season for some purpose unknown; only a few of the species are exclusively confined to fresh water.
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The Blue Whale (Balaenoptera musculus) is a marine mammal belonging to the suborder of baleen whales. Blue Whales are believed to be the largest animal ever to have lived, at up to 30
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metres (100 feet) in length and 140 tonnes (150 short tons) or more in weight.
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A volcano is a geological landform (usually a mountain) where magma (rock of the Earth's interior made molten or liquid by extremely high temperatures along with a reduction in pressure and/or the introduction of water or other volatiles) erupts through the surface of the planet. Although there are numerous volcanoes (some very active) on the solar system's rocky planets and moons, on Earth at least, this phenomenon tends to occur near the boundaries of the continental plates. However, important exceptions exist in hotspot volcanoes.
One way of classifying volcanoes is by the type of material erupted, which affects the shape of the volcano. If the erupting magma contains a high percentage (>65%) of silica the lava is called felsic or "Acidic" and tends to be very viscous (not very fluid) and is pushed up in a blob that will solidify relatively quickly. Lassen Peak in California is an example. This type of volcano has a tendency to explode because it easily plugs. Mount Pelée on the island of Martinique is another example.
If, on the other hand, the magma contains relatively small amounts (<52%) of silica, the lava is called mafic or "Basic" and will be very fluid as it erupts, capable of flowing for long distances. A good example of a mafic lava flow is the Great Thjorsarhraun flow produced by an eruptive fissure almost in the geographical center of Iceland roughly 8,000 years ago; it flowed all the way to the sea, a distance of 130 kilometers, and covered an area of 800 square km.
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