It is amodel animal for the study of fertilization and development.
The same climate shifts that rendered some areas temporarily uninhabitable may have done more than just encourage migration. A long-held view of human evolution was the savanna hypothesis: Humans diverged from apes when our ancestors adapted to grasslands. But hominin fossils turn up in more diverse environments. In the 1990s. Rick Potts of the Smithsonian Institution began to advance an alternative hypothesis: variability selection. He formulated the hypothesis after years of fieldwork at Olorgesailie, Kenya, where he found evidence of: a lake, an absent lake, a volcanic eruption, another lake, a severe drought and another lake. In brief, Potts concluded, our ancestors evolved key traits, such as big brains, by adapting to environmental instability.
Understanding Modern Evolutionary Synthesis - …
A great debate continues to rage as to whether the efficacy of psychotherapy is attributable to specific procedures in “evidence-based” treatment methods or general factors inherent in any therapeutic interaction. Around the world, governments, professional organizations, and funders are establishing lists of “approved” approaches. However, research comparing different approaches typically finds modest or no differences. Meanwhile, significant concerns persist:
(1) high dropout/discontinuation rates;
(2) an overall lack of improvement in treatment outcomes over the last 40 years; and
(3) failure to detect and address clients at risk for deterioration and lack of progress.
What are the limits of the paradigm currently guiding psychotherapy research and practice? In this discussion, Drs. Scott and William Miller will address these concerns, exploring a synthesis of technical and relational aspects of psychotherapy, and the possibility of a different paradigm for guiding the field.
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Evolution Of Modern Humans - Duration: 10:25
Evolution consists of changes in the heritable traits of a population of organisms as successive generations replace one another. It is populations of organisms that evolve, not individual organisms.
SparkNotes: Evolution: Modern Synthesis
Large-scale evolution occurring over geologic time that results in the formation of new species and broader taxonomic groups.
Modern evolutionary synthesis - Simple English …
Futuyma: Natural selection is the process by which species adapt to their environment. Natural selection leads to evolutionary change when individuals with certain characteristics have a greater survival or reproductive rate than other individuals in a population and pass on these inheritable genetic characteristics to their offspring. Simply put, natural selection is a consistent difference in survival and reproduction between different genotypes, or even different genes, in what we could call reproductive success. [A genotype is a group of organisms sharing a specific genetic makeup.]
The modern evolutionary synthesis is about evolution
The reason that natural selection is important is that it’s the central idea, stemming from Charles Darwin and Alfred Russel Wallace, that explains design in nature. It is the one process that is responsible for the evolution of adaptations of organisms to their environment.
Schedule - The Evolution Conference of Psychotherapy 2017
Darwin’s book On the Origin of Species by Means of Natural Selection caused quite a stir when it appeared in 1859. Evidence to support evolution and natural selection, of course, has accumulated over time, and now science accepts that evolution is a fact and that natural selection explains very well how adaptive evolution takes place.