Citations with the tag: EVOLUTION
Results 1 - 50
- Evolution of short incubation periods in the parasitic cowbirds, Molothrus ssp.
Briskie, James V.; Sealey, Spencer G. // Auk (American Ornithologists Union); Oct1990, Vol. 107 Issue 4, p789
No abstract available.
- Evolution in the rock dove: skeletal morphology
Johnston, Richard F. // Auk (American Ornithologists Union); Jul1992, Vol. 109 Issue 3, p530
No abstract available.
- Evolution into the Andes: molecular evidence for species relationships in the genus Leptopogon
Zink, Robert M.; Bates, John M. // Auk (American Ornithologists Union); Jul1994, Vol. 111 Issue 3, p507
No abstract available.
- Reverse evolution seen in Andes flower.
Zink, Robert M.; Bates, John M. // International Wildlife; Jul92, Vol. 22 Issue 4, p28
Reports that a flower that grows in the Andes has become less specialized in order to attract more pollinators. In this rare case of reverse evolution, the flower reverted from a convoluted French horn shape to a trumpet shape.
- Under our skin.
Davidson, Keay; Williams, A.R. // National Geographic; Jan96, Vol. 189 Issue 1, p100
Reports that 4.6 billion years ago a cloud of dust condensed into planet earth eventually turning molten from meteorite impacts and radioactive decay and while cooling formed the earth's crust. Seismic energy discussed; Other theories.
- Here Goes Nothing.
Gould, Stephen J. // Natural History; Jul85, Vol. 94 Issue 7, p12
When nothing becomes something, the inherent power of evolution can break forth. Examples are when a species or variety mimics the ways of another animal to protect it from predators, and then that mimicry appears to develop into a new behavior: such as the Australian frog that delivers young...
- Cosmology in crisis?
Gould, Stephen J. // New Scientist; 12/28/91, Vol. 132 Issue 1800/1801, p3
Editorial. Comments on the blows that have been dealt the big bang theory. Evidence that does not support the theory; Observational evidence that the big bang theory is built on; The need of major modifications to the theory if it is to survive.
- Faces from the past.
Bromage, T. // New Scientist; 1/11/92, Vol. 133 Issue 1803, p38
Reports on evidence from fossils on the way our faces evolved which gives new clues to the ancestry of modern humans and apes. How bones of the face grow and change shape; The nondestructive technique developed by the author for examining bone surfaces of fossil faces; What is revealed by the...
- Darwin's design dilemma.
Jueneman, Frederic B. // R&D Magazine; Jan98, Vol. 40 Issue 1, p13
Focuses on problems relating to the Darwinian evolution scenario from 1848 to 1998. Discussion on this topic; Details on the Darwin theory; Comments from Michael Behe of Lehigh University; Reference to a biological design system in relation to this topic.
- Old dog, old tricks.
Cronk, L. // Sciences; Jan/Feb92, Vol. 32 Issue 1, p13
Comments on the need for sperm donors and how evolution is not as quick to adapt as technology. Example of armadillo's survival tactics and its conflict with cars; Changing environment; Economic and social changes; Stone Age physiology in technological age; More.
- Whence came life?
Miller, S.L.; Chyba, C. // Sky & Telescope; Jun92, Vol. 83 Issue 6, p604
Presents different conclusions of how life arose from the early Earth's `primordial soup.' Role of production of organic matter on the early Earth; Problems with meteorite, asteroid and dust particle involvement; Role of extraterrestrial objects in developing life's precursor molecules;...
- Thanks to Jupiter.
Miller, S.L.; Chyba, C. // Sky & Telescope; May93, Vol. 85 Issue 5, p8
Discusses the role the gravitational pull of the outer planets may have played in the evolution of intelligent life on Earth. Theory proposed by George Wetherill of the Carnegie Institute of Washington at a meeting of planetary scientists; Details of theory; How outer planets protect inner...
- At home in the cosmos: The poetics of matter=energy.
Toolan, David S. // America; 2/24/1996, Vol. 174 Issue 6, p8
Focuses on evolution. Compatibility between faith and science; Theory of the cosmos; Constants involved in the formation of the universe; Discussion on matter and energy; Chance and interconnection; Chaos theory and transubstantiation.
- Evidence of the origin of life.
Toolan, David S. // Newsweek; 4/15/85, Vol. 105 Issue 15, p100
Last week, biochemists at NASA's Ames Research Center in California, presented evidence that life on earth may have gotten its start in lumps of clay. Indeed, clays are `proto-organisms' serving as patterns for living systems. The Genesis story of life-from-clay may be a real echo of an event...
- In brief.
Toolan, David S. // Earth; Jan1994, Vol. 3 Issue 1, p18
Speculates that evolution went into overdrive at the start of the Cambrian Period when virtually all existing animal groups and many extinct groups burst onto the scene. Timing of the explosion; Theories regarding concentrations of PCBs, DDT and chlordane in the Arctic; Fossil of the...
- From `savage' to `primitive': Victorian evolutionism and the interpretation of marginalized peoples.
Bowler, Peter J. // Antiquity; Sep92, Vol. 66 Issue 252, p721
Discusses the anti-polygenist position developed from Christian proselytizing through cultural evolutionism to the fully-fledged biological evolutionism in which the `primitive hunters' of the present took the place of the missing links in the fossil record. Darwin and the evolution of races;...
- Sex, disease, and evolution--variations on a theme from J.B.S. Haldane.
Sarkar, S. // BioScience; Jun92, Vol. 42 Issue 6, p448
Discusses the variations on a theme about sex, disease, and evolution in J.B.S. Haldane's 1932 book `The Causes of Evolution.' Controversies over the evolution of sex raging since the end of the nineteenth century; Mechanisms of natural selection; The role of disease; Overview of Haldane's...
- Neuromuscular development and the Cambrian animal explosion.
Sarkar, S. // BioScience; Feb1993, Vol. 43 Issue 2, p127
Reports that the sudden explosion of animal life on Earth approximately 600 million years ago may have had more to do with the development of the neuron than the oxygen content of the atmosphere, hypothesizes Steven Stanley, a paleobiologist at Johns Hopkins University. Stanley's theory;...
- Getting evolution across.
AMG // BioScience; Nov94, Vol. 44 Issue 10, p652
Offers suggestions on teaching about the theory of evolution. Assumptions about the development of life on earth; Making personal presentations; Careful introduction of evolution to students.
- Tropical barrier islands of Colombia's Pacific coast
Gonzalez, J. L.; Martinez, J. O.; Neal, W. J.; Pilkey, O. H. // Journal of Coastal Research; Spring1995, Vol. 11 Issue 2, p432
No abstract available.
- The biggest mass extinction of them all?
Hecht, Jeff // New Scientist; 8/1/92, Vol. 135 Issue 1832, p14
Reports on research by Phil Signor of the University of California at Davis who believes a mass extinction that happened more than 500 million years ago was the most severe of all time. The Botomian extinction claimed more genera than the extinction at the end of the Permian; Critics of this...
- Women leave indelible mark in evolution.
Watzman, Haim // New Scientist; 7/24/93, Vol. 139 Issue 1883, p15
Reports on the importance of women as agents of human evolution. Study of the imprinted gene phenomenon by researchers at Israel's Hebrew University; Role of imprinted genes inherited from the mother in the development of babies; Pattern of gene inheritance as upsetting the framework of...
- Males have the upper hand in evolution.
Knight, Jonathan // New Scientist; 10/18/97, Vol. 156 Issue 2104, p12
Cites a study showing that male mammals contribute more to evolution than females. Comparison of the division of sperm and egg cells; Significance of the study on birds with reversed chromosomes.
- The darling of the masses.
Hurst, Laurence // New Scientist; 06/06/98, Vol. 158 Issue 2137, p50
Presents a guided tour of evolution. The puzzle of the rise of evolution to respectability; The advantage that pro-selectionists have; Difficulties that Darwinian psychology faces; Books suggested by the author, including `Evolutionary Genetics,' by Maynard Smith; `Evolution,' by Mary Ridley.
- Life on an older earth.
Comins, Neil F. // Astronomy; Mar1993, Vol. 21 Issue 3, p40
Contemplates the differences in the Earth, the Moon and the Sun that would be apparent if life on Earth had evolved over 9 billion years, instead of 4.5 billion years. Changes that have occurred in the solar system over 4.5 billion years; How evolution on Earth could have been delayed; What...
- Approaching the edge of space & time.
Naeye, Robert // Astronomy; Apr96, Vol. 24 Issue 4, p46
Focuses on the Hubble Space Telescope artificial satellite's images of the early universe when the first galaxies were coming together. Stages of evolution; Variety of galaxies; Questions on the universe's destiny.
Naeye, Robert // Ardell Wellness Report; Summer94, Issue 35, p1
Looks at evolution from a wellness perspective. How long the planet Earth has existed; Hominids; Homo Sapiens.
- Educators adopt evolution as `theory.'
Sidey, K. // Christianity Today; 12/15/89, Vol. 33 Issue 18, p57
Studies two current events that address the conflict between evolutionists and creationists. Changed California textbooks that define evolution as a theory rather than scientific fact; Department of Education's threats to deny approval of sciencedegrees from the Institute for Creation Research...
- The cosmologists' new clothes.
Lerner, E.J. // Sky & Telescope; Feb92, Vol. 83 Issue 2, p124
Examines the defenses offered for the Big Bang theory, and argues that for the theory, put forth by physics nobelist Hannes Alfven that the big bang never happened, is correct.
- Evolution is driven by jerks.
Buchanan, Mark // New Scientist; 6/29/96, Vol. 150 Issue 2036, p14
Reports that American researchers have pinned down the key steps of evolution as they happen. Evolutionary changes in fits and starts; Process description.
- How the mind was designed.
Cowley, G. // Newsweek; 3/13/89, Vol. 113 Issue 11, p56
Discusses evolutionary theory and how scientists are working to apply it to a variety of human enigmas, from cognition to sexual desire. Different hypotheses and criticisms of them; Experiments on brain's role in behavior; Genetic research.
- Developmental instability in gynodioecious Teucrium lusitanicum
Freeman, C.; Navarro, T.; Cabezudo, B.; Alados, C. L.; Emlen, J. M. // Evolutionary Ecology; Jan1998, Vol. 12 Issue 1, p21
Developmental instability was assessed in two geographical races of Teucrium lusitanicum using morphometric measures of vegetative and reproductive structures. T. lusitanicum is a gynodioecious species. Male sterile (female) individuals showed greater developmental instability at all sites....
- Evolutionarily singular strategies and the adaptive growth and branching of the evolutionary tree
Kisdi, E.; Geritz, S. A. H.; Metz, J. A. J.; Meszena, G. // Evolutionary Ecology; Jan1998, Vol. 12 Issue 1, p35
We present a general framework for modelling adaptive trait dynamicsin which we integrate various concepts and techniques from modern ESS-theory. The concept of evolutionarily singular strategies is introduced as a generalization of the ESS-concept. We give a full classification of the singular...
- Similarity and local co-existence of species in regional biotas
Leibold, M. A. // Evolutionary Ecology; Jan1998, Vol. 12 Issue 1, p95
The notion of 'community-wide character displacement' hypothesizes that locally co-existing sets of competing species should be less similar than expected when compared to random expectations from a broaderregional species pool. Here I use a mechanistic approach to the niche concept to show how...
- Synergistic selection and graded traits
Leimar, O.; Tuomi, J. // Evolutionary Ecology; Jan1998, Vol. 12 Issue 1, p59
Fitness interactions where benefits are shared only between individuals with similar traits are often referred to as 'synergistic'. Examples include defence characters, like insect warning colouration and plant unpalatability, and joint activities needing the active participation of all group...
- Temporal Variation in Vagility: Implications for Evolutionary Studies
White, Raymond R.; Levin, Malcolm P. // American Midland Naturalist; Apr1981, Vol. 105 Issue 2, p348
No abstract available.
- An active introduction to evolution.
Lach, Michael; Loverude, Michael // American Biology Teacher; Feb98, Vol. 60 Issue 2, p132
Explains the theory of evolution using a series of simple hands-on activities with a host of extension lesson ideas. Definition of evoluntionary fact and theory; Evidence of evolution; Details on teaching techniques for evolution.
- Teaching about `intermediate forms.'
Hazard, Evan B. // American Biology Teacher; May98, Vol. 60 Issue 5, p359
Presents an article which examined the intermediate forms of evolution. Generalizations perpetuated by the media about the teaching of evolution; Views on the existence of transitional forms in evolution.
- Spin glass VII: Spin glass as paradigm.
Anderson, P. // Physics Today; Mar90, Vol. 43 Issue 3, p9
Opinion. Discusses ways in which apparently unrelated areas, such as the field of biological evolution, have been stimulated into growth by work in the spin glass field.
- Re-thinking evolution.
Anderson, P. // Newsweek; 4/8/1985, Vol. 105 Issue 14, p80
A century after Charles Darwin revolutionized the science of biology with his theory of evolution, some scientists are suggesting that there are fundamental flaws in the great naturalist's reasoning. The new evolutionists are offering additions to or modifications of Darwin based on disciplines...
- Tracking organic chemistry into space.
Spotts, Peter N. // Christian Science Monitor; 11/8/2001, Vol. 93 Issue 242, p17
Reports that scientists are seeking answers to questions about the evolution of organic life on Earth by looking to Mars, Jupiter's moon Europa, and Saturn's moon Titan.
- Phylogeny and the evolution of plant-animal interactions.
Armbruster, W.S. // BioScience; Jan1992, Vol. 42 Issue 1, p12
Discusses how detailed cladograms and knowledge of ecology allow the testing of new hypotheses about evolution. Insight into phylogenetic relationships; Review of the studies of `Dalechampia'; How the approaches can be employed to understand the evolution of plant-animal interactions; Tracing...
- How diverse was the early human population in North America?
Armbruster, W.S. // BioScience; Jan1992, Vol. 42 Issue 1, p79
Reports that recent genetic studies challenge the belief that colonizing groups of humans that entered North America 20,000 years ago were few in number and largely homogeneous across groups. Richard H. Ward, a University of Utah geneticist, nowhypothesizes that there were many small bands and...
- Fossil find breathes life into debate on ancient oxygen.
Armbruster, W.S. // New Scientist; 10/10/92, Vol. 136 Issue 1842, p18
Reports on research by scientists on coiled spiral fossils uncovered last year which are prompting a fresh look at how complex living cells evolved and how oxygen appeared in the atmosphere. Size of the coin-sized coils; Where they were found; Bruce Runnegar of the University of California at...
- The evolution of life and the universe.
Callahan, Tim // Skeptic; 1999, Vol. 7 Issue 2, p92
Discusses the theory of evolution as it applies to life and the universe.
- The first humans.
Allman, W.F. // U.S. News & World Report; 2/27/89, Vol. 106 Issue 8, p52
Presents a new view of early man based on scientific research. Early man as combining both ape and human traits; Evolution of human behavior; Social patterns. INSET: The everyday life of early man.;Windows on the past; Human....
- Sex, predators and the theory of evolution.
Brownlee, S. // U.S. News & World Report; 8/13/90, Vol. 109 Issue 7, p60
Reports that for the first time, studies in the wild are proving Darwin's theories by demonstrating the particulars of how evolution works. Experiments by Evolutionary Ecologist David Reznick; Experiments with guppies following models.
- Evolution: Fact and theory.
Colby, Chris // World & I; Jan96, Vol. 11 Issue 1, p308
Summarizes facts and theories concerning evolution. Development of evolutionary biology; Synthesis bringing about the recognition of evolution; Evidences of micro and macroevolution.
- The scientific debate on evolution.
Dadachanji, Dinshaw // World & I; Jan96, Vol. 11 Issue 1, p330
Discusses scientific differences on the theory of evolution. Ideas from the selectionists; Arguments from the historicist school of evolution; Departure from Charles Darwin's theories by the structuralist school of biologists.
- First life on Earth survived battering by meteors.
Hecht, Jeff // New Scientist; 11/09/96, Vol. 152 Issue 2055, p17
Theorizes that life may have began on Earth 350 million years earlier than everyone thought at a time when the planet was still bombarded with meteors. Isua banded formation of the oldest known sedimentary rock containing a mixture of isotopes that only living things can produce; Evolution of...