Results 341 to 350 of about 509,485 (382)
Some of the next articles are maybe not open access.
2015
The origin of fossils After an animal dies, its behavior immediately stops. Of course! Thus, behavior is the first component of the phenotype to be lost. After this, DNA and soft tissues are also rapidly lost. Large and small animals may eat or scavenge the carcass, dismembering the body, stripping away flesh, and breaking open bones that are rich in
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The origin of fossils After an animal dies, its behavior immediately stops. Of course! Thus, behavior is the first component of the phenotype to be lost. After this, DNA and soft tissues are also rapidly lost. Large and small animals may eat or scavenge the carcass, dismembering the body, stripping away flesh, and breaking open bones that are rich in
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Nature Reviews Microbiology, 2015
This month's Genome Watch examines how the increased availability of mammalian genomes provides new insights into the interactions of endogenous retroviruses with other viruses and various hosts.
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This month's Genome Watch examines how the increased availability of mammalian genomes provides new insights into the interactions of endogenous retroviruses with other viruses and various hosts.
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Biological Reviews, 2010
Over the last three decades, the fossil record of spiders has increased from being previously biased towards Tertiary ambers and a few dubious earlier records, to one which reveals a much greater diversity in the Mesozoic, with many of the modern families present in that era, and with clearer evidence of the evolutionary history of the group.
Paul A, Selden, David, Penney
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Over the last three decades, the fossil record of spiders has increased from being previously biased towards Tertiary ambers and a few dubious earlier records, to one which reveals a much greater diversity in the Mesozoic, with many of the modern families present in that era, and with clearer evidence of the evolutionary history of the group.
Paul A, Selden, David, Penney
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Comparative Biochemistry and Physiology, 1967
Abstract 1. 1. Lipid components such as fatty acid esters, cholesterol esters, free fatty acids and phospholipids (phosphatidyl ethanolamine and lecithin) were found in well-preserved fossil bones of Pleistocene age. 2. 2. Half the older specimens (to Paleozoic) contained fatty acids and two still retained phosphatidyl ethanolamine. 3. 3.
S K, Das, A R, Doberenz, R W, Wyckoff
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Abstract 1. 1. Lipid components such as fatty acid esters, cholesterol esters, free fatty acids and phospholipids (phosphatidyl ethanolamine and lecithin) were found in well-preserved fossil bones of Pleistocene age. 2. 2. Half the older specimens (to Paleozoic) contained fatty acids and two still retained phosphatidyl ethanolamine. 3. 3.
S K, Das, A R, Doberenz, R W, Wyckoff
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Nature, 1874
WHEN examining the great exposure of trap and associated Upper Silurian rocks at Cape Bon Ami, New Brunswick, I unexpectedly found fossils in the trap. I was at the time collecting agates and amygdals of calcite. One amygdal attracted my attention as singularly regular in shape.
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WHEN examining the great exposure of trap and associated Upper Silurian rocks at Cape Bon Ami, New Brunswick, I unexpectedly found fossils in the trap. I was at the time collecting agates and amygdals of calcite. One amygdal attracted my attention as singularly regular in shape.
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New fossils from Jebel Irhoud, Morocco and the pan-African origin of Homo sapiens
Nature, 2017J. Hublin +10 more
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Fungus-like mycelial fossils in 2.4-billion-year-old vesicular basalt
Nature Ecology &Evolution, 2017S. Bengtson +7 more
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Homofloresiensis-like fossils from the early Middle Pleistocene of Flores
Nature, 2016G. D. van den Bergh +7 more
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Archean molecular fossils and the early rise of eukaryotes.
Science, 1999J. Brocks +3 more
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