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Sperm whale family
hidePhyseteroidea Kogiidae
The sperm whale family, or sperm whales, is a common name for the family Physeteridae or superfamily Physeteroidea. The three existing species of whale are the Sperm Whale, in the genus Physeter, and the Pygmy Sperm Whale and Dwarf Sperm Whale, in the genus Kogia. In the past these genera have sometimes been united in the single family, Physeteridae, with the two Kogia species in a subfamily (Kogiinae), however recent practice is to allocate the genus Kogia to its own family, Kogiidae, leaving Physeteridae as a monotypic (single extant species) family, although additional fossil representatives of both families are known (see "Evolution"). The name Sperm Whale comes from sailors of whaling boats who thought that the spermaceti on the whales head was actual sperm from the reproductive system.
For more information about Sperm whale family, read the full article at
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News tagged with sperm whales
Molecular Decay of Enamel-Specific Gene in Toothless Mammals Supports Theory of Evolution
Sep 04, 2009 |
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(PhysOrg.com) -- Biologists at the University of California, Riverside report new evidence for evolutionary change recorded in both the fossil record and the genomes (or genetic blueprints) of living organisms, ...
Analysing effects of underwater noise on sperm whales
May 07, 2009 |
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(PhysOrg.com) -- Scientists are investigating whether or not noise generated by the oil and gas industry might affect the day-to-day behaviour of sperm whales.
Nine rescued whales beach again in Australia
Mar 25, 2009 |
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All but one of the 10 whales that survived a mass beaching on Australia's west coast were Wednesday believed to have come back ashore and were unlikely to survive, authorities said.
Sperm Whales in Gulf Seemingly Unaffected by Distant Seismic Sounds
Aug 21, 2008 |
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A six-year study on sperm whales in the Gulf of Mexico – designed to learn more about their abundance, migration patterns and behavior – suggests that long-range seismic sounds associated with oil and gas exploration and ...
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Australian fossil unlocks secrets to the origin of whales
Other Sciences / Archaeology & Fossils
Dec 22, 2009 |
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Museum Victoria palaeobiologist Dr Erich Fitzgerald has made new groundbreaking discoveries into the origin of baleen whales, based on a 25 million year old fossil found near Torquay in Victoria.
Largest study of PGD children shows embryo biopsy is safe for singleton pregnancies
Dec 22, 2009 |
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The largest and longest running study of children born after preimplantation genetic diagnosis and screening has shown that embryo biopsy does not adversely affect the health of babies born as the result of a subsequent singleton ...
Study shows immune system protein involved in reprogramming adult cells to express stem cell genes
Dec 22, 2009 |
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(PhysOrg.com) -- Scientists have discovered a protein required to quickly and efficiently reprogram human skin cells to express embryonic stem cell genes.
Meddling in mosquitoes' sex lives could help stop the spread of malaria, says study
Dec 22, 2009 |
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(PhysOrg.com) -- Stopping male mosquitoes from sealing their sperm inside females with a 'mating plug' could prevent mosquitoes from reproducing, and offer a potential new way to combat malaria, say scientists ...
Oceans becoming noisier thanks to pollution -- report
Dec 20, 2009 |
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The world's oceans are becoming noisier thanks to pollution, with potentially harmful effects for whales, dolphins and other marine life, US scientists said in a study published Sunday.
New pictures reveal rich Antarctic marine life in area of rapid climate change
Dec 17, 2009 |
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(PhysOrg.com) -- New photographs of ice fish, octopus, sea pigs, giant sea spiders, rare rays and beautiful basket stars that live in Antarctica’s continental shelf seas are revealed this week by the British ...
Zoning the ocean may help endangered whales to recover
Dec 16, 2009 |
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Scientists in Scotland, Canada and the US have proposed a new method to identify priority areas for whale conservation. The team's findings, published in Animal Conservation, suggest that even small protected areas, identi ...
Netherlands to slaughter more animals in Q fever epidemic
Dec 16, 2009 |
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The Netherlands stepped up measures Wednesday against the world's biggest Q fever epidemic that has killed 10 humans, by ordering the slaughter of over 30,000 animals, a press release said.
Story of 4.5 million-year-old whale unveiled in Huelva
Other Sciences / Archaeology & Fossils
Dec 15, 2009 |
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In 2006, a team of Spanish and American researchers found the fossil remains of a whale, 4.5 million years old, in Bonares, Huelva. Now they have published, for the first time, the results of the decay and ...
Ovaries must suppress their inner male
Dec 10, 2009 |
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For an ovary to remain an ovary, the female organ has to continuously suppress its inner capacity to become male. That's the conclusion of a study in the December 11th issue of the journal Cell revealing that t ...
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