Morphological evidence for the phylogeny of Cetacea. Nature 388:622-624.Montgelard, C., F.M. Morphological studies suggested that artiodactyls is the sister group to Cete --,These latter analyses confirmed the monophyly of Cetartiodactyla (cetaceans,artiodactyls) and clarified its phylogeny. Soc., London, 1883:466-513.Fordyce R.E. 1990. 1994.
1997. The most primitive taxa exhibited locomotory hind limbs (see Thewissen et al. Mol. Some cetaceans, such as the Dall's porpoise and the orca (killer whale) can swim faster than 30 miles per hour.When a cetacean wants to breathe, it has to rise to the water surface and exhale and inhale out of the blowholes located on top of its head.
Tracing characteristics of living cetaceans back through geological time enables us to identify traits that are primitive in Cetacea and, hence, to recognize the origin of the order and its broader phylo-genetic relationships. 1999. Acad. A newly discovered species of living baleen whale. Science 263:210-212.Thewissen, J. G. M. , E. M. Williams, L. J. Roe and S. T. Hussain.
Because of the high specialization of the giant sperm whale facial anatomy, it is unclear what structure in this species is homologous to the melon of other cetaceans. Eventoed Fingerprints on Whale Ancestry. ), The Emergence of Whales: Evolutionary Patterns in the Origin of Cetacea , Plenum, New York.Gatesy, J. , C. Hayashi , M. Cronin, and P. Arctander.
Syst. The cetacean evolution of both suborders are incredibly similar, as they are all a result of evolutionary convergence.
At the Water's Edge: Fish with Fingers, Whales with Legs, and How Life Came Ashore but Then Went Back to Sea.
201-234. They do not have external ears but have tiny ear openings behind each eye. Whales, dolphins, and porpoises. Evol. 1994. Phylogeny of Primates and other eutherian orders: a cladistic analysis using amino acid and nucleotide sequence data. Characteristics. Marine Mammal Science 15:1133-1157.Cranford T. W., Amundin M., and K.S. J. Mammal. Los Angeles 405:1-64.Irwin, D. M., T. D. Kocher, and A. C. Wilson. This hypothesis is supported by comparative CT-scan analyses (Cranford et al. 1883.
This blubber layer can be as much as 24 inches thick in some whales.Whales have a poor sense of smell, and depending on where they are, they may not be able to see well underwater. Biol.
When the cetacean comes to the surface and exhales, you can sometimes see the spout, or blow, which is the result of the warm air in the whale's lungs condensing upon reaching the cool air outside.Whales do not have a coat of fur to keep warm, so they have a thick layer of fat and connective tissue called blubber underneath their skin. Marine mammals of the world.
Function of the spermaceti organ of the sperm whale. 1998. Gregory. 1994; Gingerich et al. Waipatia maerewhenua, new genus and new species (Waipatiidae, new family), an archaic late Oligocene dolphin (Cetacea: Odontoceti: Platanistoidea) from New Zealand. 80:445473.Prothero D., Manning E. and Fisher M. 1988.
Fossil evidence for the origin of aquatic locomotion in archaeocete whales. Proc. May help with localization of sound. J. Morph. 2001. Representatives of this group have been found in Egypt, Nigeria, India, Pakistan, and USA and show a wide range of morphologies that prompted their classification into several families such as the Pakicetidae (early Eocene), Protocetidae (middle Eocene) and Basilosauridae (middle to Late Eocene). 1996. ), The Emergence of Whales: Evolutionary Patterns in the Origin of Cetacea. Revised phylogeny of whales suggested by mitochondrial ribosomal DNA sequences.
Nature 426: 278-281.Zimmer, C. 1998. Rooney,and N. Okada. 2005. Biol.
Morphological evidence for the phylogeny of Cetacea. Nature 388:622-624.Montgelard, C., F.M. Morphological studies suggested that artiodactyls is the sister group to Cete --,These latter analyses confirmed the monophyly of Cetartiodactyla (cetaceans,artiodactyls) and clarified its phylogeny. Soc., London, 1883:466-513.Fordyce R.E. 1990. 1994.
1997. The most primitive taxa exhibited locomotory hind limbs (see Thewissen et al. Mol. Some cetaceans, such as the Dall's porpoise and the orca (killer whale) can swim faster than 30 miles per hour.When a cetacean wants to breathe, it has to rise to the water surface and exhale and inhale out of the blowholes located on top of its head.
Tracing characteristics of living cetaceans back through geological time enables us to identify traits that are primitive in Cetacea and, hence, to recognize the origin of the order and its broader phylo-genetic relationships. 1999. Acad. A newly discovered species of living baleen whale. Science 263:210-212.Thewissen, J. G. M. , E. M. Williams, L. J. Roe and S. T. Hussain.
Because of the high specialization of the giant sperm whale facial anatomy, it is unclear what structure in this species is homologous to the melon of other cetaceans. Eventoed Fingerprints on Whale Ancestry. ), The Emergence of Whales: Evolutionary Patterns in the Origin of Cetacea , Plenum, New York.Gatesy, J. , C. Hayashi , M. Cronin, and P. Arctander.
Syst. The cetacean evolution of both suborders are incredibly similar, as they are all a result of evolutionary convergence.
At the Water's Edge: Fish with Fingers, Whales with Legs, and How Life Came Ashore but Then Went Back to Sea.
201-234. They do not have external ears but have tiny ear openings behind each eye. Whales, dolphins, and porpoises. Evol. 1994. Phylogeny of Primates and other eutherian orders: a cladistic analysis using amino acid and nucleotide sequence data. Characteristics. Marine Mammal Science 15:1133-1157.Cranford T. W., Amundin M., and K.S. J. Mammal. Los Angeles 405:1-64.Irwin, D. M., T. D. Kocher, and A. C. Wilson. This hypothesis is supported by comparative CT-scan analyses (Cranford et al. 1883.
This blubber layer can be as much as 24 inches thick in some whales.Whales have a poor sense of smell, and depending on where they are, they may not be able to see well underwater. Biol.
When the cetacean comes to the surface and exhales, you can sometimes see the spout, or blow, which is the result of the warm air in the whale's lungs condensing upon reaching the cool air outside.Whales do not have a coat of fur to keep warm, so they have a thick layer of fat and connective tissue called blubber underneath their skin. Marine mammals of the world.
Function of the spermaceti organ of the sperm whale. 1998. Gregory. 1994; Gingerich et al. Waipatia maerewhenua, new genus and new species (Waipatiidae, new family), an archaic late Oligocene dolphin (Cetacea: Odontoceti: Platanistoidea) from New Zealand. 80:445473.Prothero D., Manning E. and Fisher M. 1988.
Fossil evidence for the origin of aquatic locomotion in archaeocete whales. Proc. May help with localization of sound. J. Morph. 2001. Representatives of this group have been found in Egypt, Nigeria, India, Pakistan, and USA and show a wide range of morphologies that prompted their classification into several families such as the Pakicetidae (early Eocene), Protocetidae (middle Eocene) and Basilosauridae (middle to Late Eocene). 1996. ), The Emergence of Whales: Evolutionary Patterns in the Origin of Cetacea. Revised phylogeny of whales suggested by mitochondrial ribosomal DNA sequences.
Nature 426: 278-281.Zimmer, C. 1998. Rooney,and N. Okada. 2005. Biol.
Systematic Biology 47:90-124.Milinkovitch, M. C. 1992. Science 293:2239-2242.Goodman, M., J. Czelusniak, And J. E. Beeber. Sand Diego Soc. The term "about" is used because as scientists learn more about these fascinating animals, new,Cetaceans range in size from the tiniest dolphin, Hector's dolphin, which is just over 39 inches long, to the largest whale, the.Cetaceans are thought to have evolved from even-toed ungulates (a group that includes cows, camels, and deer).There are many types of cetaceans, which are divided largely according to how they feed.The Mysticetes include species such as the blue whale, fin whale, right whale, and humpback whale.Mysticetes have hundreds of comb-like plates of,Odontocetes include the sperm whale, orca (.Cetaceans are mammals, which means they are endothermic (commonly called warm-blooded) and their internal body temperature is about the same as a human's. The telescoping of the skull mostly involves the posterior extension of the bones of the elongated rostrum: maxillae, premaxillae, vomer and mesethmoid;Isolation of the earbones related to the development of underwater hearing and echolocation abilities. Sci. Phylogenet. Biol. The sperm whale's nose: sexual selection on a grand scale? Biol. This tree diagram shows the relationships between several groups of organisms.The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life.
Milinkovitch, and N. Okada.
Morphological evidence for the phylogeny of Cetacea. Nature 388:622-624.Montgelard, C., F.M. Morphological studies suggested that artiodactyls is the sister group to Cete --,These latter analyses confirmed the monophyly of Cetartiodactyla (cetaceans,artiodactyls) and clarified its phylogeny. Soc., London, 1883:466-513.Fordyce R.E. 1990. 1994.
1997. The most primitive taxa exhibited locomotory hind limbs (see Thewissen et al. Mol. Some cetaceans, such as the Dall's porpoise and the orca (killer whale) can swim faster than 30 miles per hour.When a cetacean wants to breathe, it has to rise to the water surface and exhale and inhale out of the blowholes located on top of its head.
Tracing characteristics of living cetaceans back through geological time enables us to identify traits that are primitive in Cetacea and, hence, to recognize the origin of the order and its broader phylo-genetic relationships. 1999. Acad. A newly discovered species of living baleen whale. Science 263:210-212.Thewissen, J. G. M. , E. M. Williams, L. J. Roe and S. T. Hussain.
Because of the high specialization of the giant sperm whale facial anatomy, it is unclear what structure in this species is homologous to the melon of other cetaceans. Eventoed Fingerprints on Whale Ancestry. ), The Emergence of Whales: Evolutionary Patterns in the Origin of Cetacea , Plenum, New York.Gatesy, J. , C. Hayashi , M. Cronin, and P. Arctander.
Syst. The cetacean evolution of both suborders are incredibly similar, as they are all a result of evolutionary convergence.
At the Water's Edge: Fish with Fingers, Whales with Legs, and How Life Came Ashore but Then Went Back to Sea.
201-234. They do not have external ears but have tiny ear openings behind each eye. Whales, dolphins, and porpoises. Evol. 1994. Phylogeny of Primates and other eutherian orders: a cladistic analysis using amino acid and nucleotide sequence data. Characteristics. Marine Mammal Science 15:1133-1157.Cranford T. W., Amundin M., and K.S. J. Mammal. Los Angeles 405:1-64.Irwin, D. M., T. D. Kocher, and A. C. Wilson. This hypothesis is supported by comparative CT-scan analyses (Cranford et al. 1883.
This blubber layer can be as much as 24 inches thick in some whales.Whales have a poor sense of smell, and depending on where they are, they may not be able to see well underwater. Biol.
When the cetacean comes to the surface and exhales, you can sometimes see the spout, or blow, which is the result of the warm air in the whale's lungs condensing upon reaching the cool air outside.Whales do not have a coat of fur to keep warm, so they have a thick layer of fat and connective tissue called blubber underneath their skin. Marine mammals of the world.
Function of the spermaceti organ of the sperm whale. 1998. Gregory. 1994; Gingerich et al. Waipatia maerewhenua, new genus and new species (Waipatiidae, new family), an archaic late Oligocene dolphin (Cetacea: Odontoceti: Platanistoidea) from New Zealand. 80:445473.Prothero D., Manning E. and Fisher M. 1988.
Fossil evidence for the origin of aquatic locomotion in archaeocete whales. Proc. May help with localization of sound. J. Morph. 2001. Representatives of this group have been found in Egypt, Nigeria, India, Pakistan, and USA and show a wide range of morphologies that prompted their classification into several families such as the Pakicetidae (early Eocene), Protocetidae (middle Eocene) and Basilosauridae (middle to Late Eocene). 1996. ), The Emergence of Whales: Evolutionary Patterns in the Origin of Cetacea. Revised phylogeny of whales suggested by mitochondrial ribosomal DNA sequences.
Nature 426: 278-281.Zimmer, C. 1998. Rooney,and N. Okada. 2005. Biol.
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