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  2. Sexual dimorphism - Wikipedia

    en.wikipedia.org/wiki/Sexual_dimorphism

    Hormones significantly affect human brain formation, and also brain development at puberty. A 2004 review in Nature Reviews Neuroscience observed that "because it is easier to manipulate hormone levels than the expression of sex chromosome genes, the effects of hormones have been studied much more extensively, and are much better understood ...

  3. Neoteny - Wikipedia

    en.wikipedia.org/wiki/Neoteny

    Neoteny is seen in domesticated animals such as dogs and mice. [25] This is because there are more resources available, less competition for those resources, and with the lowered competition the animals expend less energy obtaining those resources. This allows them to mature and reproduce more quickly than their wild counterparts. [25]

  4. Secondary sex characteristic - Wikipedia

    en.wikipedia.org/wiki/Secondary_sex_characteristic

    Examples of secondary sex characteristics in non-human animals include manes of male lions [4] and long feathers of male peafowl, the tusks of male narwhals, enlarged proboscises in male elephant seals and proboscis monkeys, the bright facial and rump coloration of male mandrills, horns in many goats and antelopes, [10] and the swollen upper ...

  5. Category:Animal genes - Wikipedia

    en.wikipedia.org/wiki/Category:Animal_genes

    Pages in category "Animal genes" The following 22 pages are in this category, out of 22 total. This list may not reflect recent changes. A. Argininosuccinate lyase; C.

  6. Developmental biology - Wikipedia

    en.wikipedia.org/wiki/Developmental_biology

    The development of plants involves similar processes to that of animals. However, plant cells are mostly immotile so morphogenesis is achieved by differential growth, without cell movements. Also, the inductive signals and the genes involved are different from those that control animal development.

  7. Sexual differentiation - Wikipedia

    en.wikipedia.org/wiki/Sexual_differentiation

    Sexual differentiation is the process of development of the sex differences between males and females from an undifferentiated zygote. [1] [2] Sex determination is often distinct from sex differentiation; sex determination is the designation for the development stage towards either male or female, while sex differentiation is the pathway towards the development of the phenotype.

  8. Behavioural genetics - Wikipedia

    en.wikipedia.org/wiki/Behavioural_genetics

    Investigators in animal behaviour genetics can carefully control for environmental factors and can experimentally manipulate genetic variants, allowing for a degree of causal inference that is not available in studies on human behavioural genetics. [15] In animal research selection experiments have often been employed.

  9. Neuroscience and sexual orientation - Wikipedia

    en.wikipedia.org/wiki/Neuroscience_and_sexual...

    use animal models to explore genetic and developmental factors that influence sexual orientation; further population studies, genetic studies, and serological markers to clarify and definitively determine the effect of maternal immunity; neuroimaging studies to quantify sexual-orientation-related differences in structure and function in vivo