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Language is a mosaic composite of various elements working together for one specific attribute, and this is not a single trait an offspring can inherit directly. [14] In addition, it has been shown that an increase in social interactions corresponds to the evolution of human intelligence or in other words, an increase in brain size .
Trait theory tends to focus on the individual over the situation in which they are in. [10] This focus has relaxed within modern studies allowing for a consideration of the external factors outside of the self. As the focus becomes more relaxed (but still prominent as it is a main part of the theory) research expands.
A commonly used example of mutualism in mosaic coevolution is that of the plant and pollinator.Anderson and Johnson studied the relationship between the length of the proboscis of the long-tongued fly (P. ganglbaueri) and the corolla tube length of Zaluzianskya microsiphon, a flowering plant endemic to South Africa. [4]
The theory will function regardless of the physical or behavioral trait a female chooses, as long as it is heritable (that is, the trait varies between individuals of the population), because it is possessing the trait that makes males attractive, and not the qualities of the trait in itself.
In evolutionary biology, an evolutionary tradeoff is a situation in which evolution cannot advance one part of a biological system without distressing another part of it. In this context, tradeoffs refer to the process through which a trait increases in fitness at the expense of decreased fitness in another trait.
The indicator traits hypothesis is split into three highly related subtopics: the handicap theory of sexual selection, the good genes hypothesis, and the Hamilton–Zuk hypothesis. People rate the importance of certain traits differently when referring to their own or to others' ideal long-term partners.
Inclusive fitness is a conceptual framework in evolutionary biology first defined by W. D. Hamilton in 1964. [1] It is primarily used to aid the understanding of how social traits are expected to evolve in structured populations. [2]
A number of traits can vary as a result of shortening of the fetal development of a trait or by prolongation of the same. In such a case, a shift in the time a trait is allowed to develop before it is fixed can bring forth an ancestral phenotype. [5] Atavisms are often seen as evidence of evolution. [6]