If a rat had a lesioned (surgically removed) amygdala and was then placed in the same room with a cat, the rat would likely appear tame, neutral, perhaps even playful. The amygdala is a structure located in the temporal lobe that participates in the control of emotional and motivated behaviors. In the rat it is considered that two of the subdivisions of the amygdala, the medial amygdala (Am) and the posteromedial nucleus, belong to the vomeronasal system,
Invasive species cause harm to wildlife in many ways. When a new and aggressive species is introduced into an ecosystem, it may not have any natural predators or controls. ... Invasive species can also alter the abundance or diversity of species that are important habitat for native wildlife.
In incomplete dominance, neither of the alleles in an heterozygous condition is dominant, thing the organism will show a form of phenotype in which the physical trait expressed is a combination of the two alleles.
