sexual dimorphism
two forms or types of a plant or animal because of its sex
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
sexual dimorphism
(dy-mor-fiz-um)
A special case of polymorphism based on the distinction between the secondary sex characteristics of males and females.
sexual reproduction ...
[edit] Sexual dimorphism
The Rhinoceros beetle demonstrates a classic case of sexual dimorphism. This plate is from Darwin's Descent of Man, with the male at top, female at bottom.
We look at brain sexual dimorphisms, which means the difference between male and female brains in terms of their structure, in terms of number of neurons in specific structures, density of neurons, ...
dimorphism
An occurance of an organism in two forms. Sexual dimorphism refers to males and females. Dimorphism may occur in, for example, body form or colour.
In many species, especially polygynous species where only a few males monopolize all the females, sexual selection has caused pronounced sexual dimorphism. In these species males compete against other males for mates.
 See also: Dimorphism, Sexual, Animal, Species, Organ
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