Referring to the differences in males and females in addition to sex organs, such as size or color.

having two distinct forms ( e.g., differences in shape, size, coloring) of individuals within the same species, based on the gender of the individual.

Size differences between the sexes, as seen with certain parasites.

gender differences in characteristics.

The existence of distinctly different forms of males and females. For example, sexual dimorphism is very obvious in newts of the genus Triturus, which develop even more exaggerated secondary characteristics during the breeding season.

is found in mammals when the male and female have distinct differences such as size or other characteristics that make them appear different.

phenomenon in which the male and female of a single species have a different appearance.

The difference in the appearance and morphology of males and females. For example, males may be either larger (as in primates) or smaller (as in hawks) than females.

Size and shape differences between male and females of the same species.

A condition wherein the male and female adult insects differ in appearance, as in yellow stem borers.

When individuals of the same species have different physical characteristics (eg: color and size) based on the sex of the animal. Orcas show strong sexual dimorphism.

Morphological differences between the sexes.

Differences in color, size, form, or structure (other than sex organs) between adult males and adult females of the same species.

the existence of different plumage for males and females within the same species

Refers to the case where males and females of a species look different. For example, male fence lizards have blue bellies and throats, while females do not; male birds are often more colorful than female birds.

males and females look different - size, hair growth pattern, colour of fur, size of canines - terrestrial primates are reasonably sexually dimorphic in spider monkeys, females are bigger than males

the ability to distinguish between males and females of the same species on the basis of external body characteristics.

refers to the difference in size between one sex and another in a given species. In some species males are larger (i.e. elephants), in others females are (i.e hyenas) and in some they are about the same size (i.e. geese)

The differences in size, structure, or appearance exhibited between the males and females of some species. The Purple Martin exhibits sexual dimorphism because males and females each possess different colors and markings during the breeding season.

Refers to a species where the males and females are different in appearance. This can be a difference in size, or in other visual features.

A difference in the appearance of the sexes within a species.  Males usually larger than females in marine mammals.

the physical differences that distinguish adult males and females. The "fork in the road" in early adolescence where the distinctive appearance of the specific gender becomes apparent.

The physical differences between males and females of the same species.

"The development of physical and other differences between the sexes of the same species, especially when this difference extends beyond the reproductive organs to overall size, color, and the development of special features." ("Encyclopedia of Marine Mammals," William F. Perrin, Bernd Wursig and J.G.M. Thewissen, Academic Press, 2002, p. 1367.)

a color difference in sex's of the same species

Difference in shape & size between males and females within a species...Not relating to Form.

This means that there are feature differences between male and female reptiles or amphibians.

sexes are somehow different in appearance.

The state of affairs, observed in many species, in which the sexes differ in form (such as deer antlers or peacock tail feathers) or size. Sexual dimorphism is minimal among monogamous animals and maximal among polygamous ones.

difference in size between male and female of a species

See " Dimorphism".

A distinct difference in appearance between males and females of the same species

differences in size or shape between the males and females of a species.

Sexual dimorphism is the physical differences between the males and females of a species. Female baleen whales are larger than males. Male toothed whales are generally larger than females.

A pronounced difference in the morphologies of the two sexes within a species. ( 14)

Sexual dimorphism is characteristic of having two different forms, one for the males and another for the females of a species.

Sexual dimorphism is the systematic difference in form between individuals of different sex in the same species.