WHO IS BRIGHTER THE MALE OR THE FEMALE!

 

WHO IS BRIGHTER

THE MALE  OR  THE FEMALE!

Sometimes I have wondered what beautiful colors and dazzling ornaments the human female adapts to wear which  the society will never accept if a human male wears the same multicolored attire.

Whereas, the same is vice versa in the animal kingdom, where most of the male species posses dazzling ornaments and vibrant colors. (I mean most because there are some exceptions in animals  where females are brighter) 

All animals are not sexually dimorphic; there are animals thet never have a very distinct physical difference between the males and females.

There is a difference in human and animal adaptation.

Why is it so ?

Let us see why there is a need for  the male animals to be brighter than the females and what  the scientist have discovered.

 In birds  like the north american cardinal, the male bird has brilliantly colored feathers while the female's feathers are drab and dark. One reason the males have a more colorful appearance is because they can capture the attention of the female bird they wish to mate with. The male's bright colors also come in handy after mating, when he's protecting the nest and sending a clear signal to other males to keep away from his territory.

The female's dull colors, on the other hand, help her blend in with the branches surrounding her nest and avoid being seen by enemies. If her feathers were bright like the male's, she would be easily spotted by predators, and she would have to leave her nest unprotected if attacked.

Scientist M.S.Beagle says that males compete among themselves to attract females, showing off their antlers, bright plumage or other ornaments that signal good health. Females watch the display from the sidelines, aloof and picky, like wealthy patrons at an art exhibition.when a male meets a female's approval, she agrees to court him and finally grants him permission to impregnate her.

The mate choice, in which males do all the dancing-to-impress and females sit on the judging panel, is being increasingly viewed by scientists as too simplistic  a broad-brush picture that tells only part of the story.

Zoologists and evolutionary experts are coming up with evidence that suggests greater evenness in gender equations across the animal kingdom, meaning that females as well as males at least in some species strive to attract the opposite sex.

There are  champions of female beauty in the animal world also and there are numerous species in which females have dazzling ornaments, like parrots, hummingbirds, angelfish and butterflyfish..

Russell Lande, a biologist at the university of California says"in species where both sexes have similar ornamentation  both parents care for the young”

Dr. Lande said, "it is likely that both sexes are involved in choosing mates to a nearly equal extent, leading to parallel evolution of ornaments species where males provide a substantial amount of parental care to the offspring.

All these species do not have extravagant males because of other selective pressures on his appearance.

Fish have a tremendous selective evolutionary pressure on their shape to be stream lined to be hydrodynamically streamlined and swift so as to avoid predators and catch prey. Therefore they are  typically not sexually dimorphic; there usually isn't a very distinct physical difference in appearance between the males and females. Some species, though, have some telltale signs that vary among the genders such as color or size.

There are species in which the male takes as active a role in caring for vulnerable youngsters as the female ,example  sea horses, penguins, and some fish (where the eggs are taken in the male’s mouth).

Sexing fish, or identifying the gender, is a task that varies in difficulty depending on the type of fish. Some, like bettas and Sword Tail fish, are easy to distinguish by the lengths of their tails. Others, like Goldish, require a great deal of observational skill, patience and a dash of expertise. (male goldfish have a tendency to chase the females and nudge at their rear/ a male will usually be longer and thinner whereas a female has a thicker appearance/ a females anal vent will protrude slightly and her anal fin is thicker/ male goldfish develop white spots on their gills called breeding tubercles).

In human,we think of females as prettier because males seek healthy mothers. But neither sex actually has conspicuous physical display compared to the really showy species.

While the human life style today trying towards ‘ unisex concept’   the animals are still proud of their gender.