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- Ivory (4783 bytes)
5: ...e any mammalian teeth or tusks of commercial interest which is large enough to be carved or [[scrimsha...
9: ...ps, have evolved from teeth and give certain species an evolutionary advantage. The teeth of most mamm...
11: Teeth and tusks have the same physical structures: [[pulp]] [[cavity]], [[dentine]], [[cementum]] a...
13: ...ee dimensional configuration of the dentinal tubules is under genetic control and is therefore a chara...
15: ...icially carved, thus retaining their original shapes as morphologically recognizable objects. - Dolphin (13554 bytes)
18: #any member of the families [[Delphinidae]] and [[Platanistoidae]] (oceanic a...
19: ...]] (toothed whales; these include the above families and some others),
20: ...nose Dolphin]], the most common and familiar species of dolphin.
24: ...lify as dolphins, even though they are called whales in common language.
26: ...s of the continental shelves, and all are carnivores, mostly eating fish and squid. - Blue Whale (22203 bytes)
2: ...ewhale877.jpg|250px]] | caption = The world's largest animal}}
12: {{Taxobox_species_entry | taxon = '''''B. musculus '''''}}
18: ...imal ever to have lived, at up to 30 [[1 E1 m|metres]] (100 [[foot (unit of length)|feet]]) in length ...
20: ... one in [[Antarctica|Antarctic]] waters. Blue Whales found in the [[Indian Ocean]] may or may not be p...
23: ..., it is not known when the members of these families diverged from each other. - Bottlenose Dolphin (16802 bytes)
11: {{Taxobox_species_entry | taxon = '''''T. truncatus'''''}}
16: ...s the most common and well-known [[dolphin]] species. It inhabits warm and temperate seas worldwide an...
18: ==Physical description==
19: ...t grey and almost white at the underside. This makes them hard to see both from above and below when s...
21: ...ult length of just under 4m (13 feet). This compares with a 2.5m (8 feet) average in a population off ... - Whale (11080 bytes)
1: ...est mammals, the largest vertebrates, and the largest known animals in the world.
3: ... to some confusion because [[Orca]]s ("Killer Whales") and [[Pilot Whale]]s have "whale" in their name...
5: ...300px|Size comparison between some well-known whales and other sea animals]]
9: ...ankton]] from the water. They are the largest whales.
12: ...isting of all cetacean species, including all whales, is maintained at the ''[[Cetacea]]'' article. - Great White Shark (5784 bytes)
6: {{Taxobox_classis_entry | taxon = [[Chondrichthyes]]}}
8: {{Taxobox_ordo_entry | taxon = [[Lamniformes]]}}
11: {{Taxobox_species_entry | taxon = '''''carcharias'''''}}
15: ...tory fish. They are the only known surviving species of their genus, ''Carcharodon''.
17: ...her Great Whites, [[sperm whale]]s, humans, and [[orca]]s. - Food chain (2419 bytes)
1: ...the transfer of material and energy from one species to another within an [[ecosystem]].
3: ...inorganic materials. These are often [[photosynthesis | photosynthetic]], but some, like those formin...
7: A '''food chain''' describes a single pathway that energy and nutrients may fo...
9: ... [[squid]] → [[seal (mammal)|seal]] → [[orca]]
11: ...utotrophs by virtue of their ability to photosynthesize—are the base of the food chain. - Humpback Whale (17123 bytes)
13: {{Taxobox_species_entry | taxon = '''''M. novaeangliae'''''}}
16: ...a_range_map_Humpback_Whale.PNG|250px|Humpback Whales go where there is water.]] | caption = Humpback W...
18: ...its complex [[whale song]]. The Humpback Whale lives in oceans and seas around the world, and is regul...
19: ==Physical description==
20: ...fted high in the dive sequence, have wavy rear edges. - Penguin (7847 bytes)
7: {{Taxobox_classis_entry | taxon = [[bird|Aves]]}}
8: {{Taxobox_ordo_entry | taxon = '''Sphenisciformes'''}}
12: ''[[Aptenodytes]]''<br />
13: ''[[Eudyptes]]''<br />
15: ''[[Megadyptes]]''<br /> - Basking Shark (7122 bytes)
6: {{Taxobox_classis_entry | taxon = [[Chondrichthyes]]}}
7: {{Taxobox_ordo_entry | taxon = [[Lamniformes]]}}
10: {{Taxobox_species_entry | taxon = '''''C. maximus'''''}}
14: ...mily, '''Cetorhinidae'''. It has however been suggested that the related [[Megamouth Shark]] (''Megach...
16: ...d trade in its products restricted in many countries. - Beluga Whales (10188 bytes)
10: {{Taxobox_species_entry | taxon = '''''D. leucas'''''}}
15: ...red to simply as the '''Beluga''' - the word derives from the [[Russian language|Russian]] ''beloye'' ...
18: ...he same family though recent genetic evidence suggests otherwise.
20: ...rd also indicates that in comparatively recent times the Beluga's range has varied with that of the ic...
23: ...nt of the high-pitched squeaks, squeals and whistles. - Bowhead Whales (5651 bytes)
2: ... image = [[image:Bowheads42.jpg|250px|Bowhead Whales]] | caption =}}
12: {{Taxobox_species_entry | taxon = '''''B. mysticetus'''''}}
19: ==Description==
20: ...hs of up to 20 meters; females are larger than males. The [[blubber]] layer of the bowhead whale is t...
23: ...below the water surface for as long as forty minutes in a single dive, they are not thought to be deep... - Gray Whales (7433 bytes)
10: {{Taxobox_familia_entry | taxon = '''Eschrichtiidae'''}}
11: {{Taxobox_genus_entry | taxon = '''''Eschrichtius'''''}}
12: {{Taxobox_species_entry | taxon = '''''E. robustus '''''}}
14: ...section_binomial | color = pink | binomial_name = Eschrichtius robustus | author = [[Lilljeborg]] | da...
17: ... sole genus in the [[family (biology)|family]] '''Eschrichtiidae'''. - Narwhals (5962 bytes)
10: {{Taxobox_species_entry | taxon = '''''M. monoceros'''''}}
15: ...h of [[latitude]] 70°N. It is one of two species of [[whale]] in the ''Monodontidae'' [[family (bi...
17: ... [[Old Norse]] words for 'corpse' and 'whale' to describe the mottled white and grey colouring of the ...
19: ==Physical description==
23: ...-5m) and weigh up to ten kilograms. One in 500 males has two tusks. - Risso's Dolphins (4213 bytes)
11: {{Taxobox_species_entry | taxon = '''''G. griseus'''''}}
13: ...binomial_name = Grampus griseus | author = [[Georges Cuvier|G. Cuvier]] | date = [[1812]]}}
17: ...phin''' (''Grampus griseus'') is the only [[species]] of [[dolphin]] in the [[genus]] '''''Grampus'''...
20: ...mmon name was historically used to describe the [[Orca]]. The etymology of the word grampus is unclear. ...
22: ==Physical description== - Spinner Dolphins (5175 bytes)
11: {{Taxobox_species_entry | taxon = '''''S. longirostris'''''}}
19: ...John Gray in 1828. There are four named [[subspecies]]:
23: ...t represents a mixed bag of broadly similar subtypes found throughout the world.
26: ...te belly is noted in the eastern Pacific. Other less distinct groupings have been identified in other...
28: The specific name comes from the [[Latin]] for long-beaked. - Toothed Whales (2954 bytes)
1: ...Taxobox_begin | color = pink | name = Toothed whales}}
9: ... = pink | plural_taxon = [[Family (biology)|Families]]}}
12: ...e hunters, feeding on fish, squid, and in some cases marine mammals.
17: ... the top of the head (while the baleen whales possess two of them).
18: ...dae|beaked whales]] with bizarre teeth only in males. - White-Beaked Dolphins (2967 bytes)
3: ...roup of White-beaked Dolphin surfacing, Snaefellsnes peninsula, Iceland]]| caption =}}
13: {{Taxobox_species_entry | taxon = '''''L. albirostris'''''}}
18: ...populated in the eastern North Atlantic than the west.
20: ...[[Humpback Whale]]s as well as other dolphin species.
22: == References ==
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