Thus the genetic basis to the origin of bird species is to be sought in the inheritance of adult traits that are subject to natural and sexual selection.

Islands are known to differ in the food supply available to ground finches, mainly seeds.

To summarize, the particular song a male sings, and the behavioral responses of females to song and morphological signals, are not genetically inherited in a fixed manner but are determined by learning early in life.

Evidence of epistasis from hybridization studies is more scarce.

Plumage features constitute a major component of courtship signals.

The theory of founder effects does not explain how novel features like plumage traits arise.

The process of speciation is completed with the cessation of genetic exchange.

Almost nothing is known from hybridization studies about the inheritance of courtship behavior of females, or of their responsiveness to particular male signals.

Males transmit signals in courtship through behavioral displays.

Thus mating of females was strictly along the lines of paternal song.

Species can be recognized by their morphological characteristics and songs.

Thus the genetic basis to the origin of bird species is to be sought in the inheritance of adult traits that are subject to natural and sexual selection.

We observe closely related species in sympatry and infer how they evolved from a common ancestor.

Genes that underlie the capacity to receive, use and transmit information are the evolving properties.

The divergence of songs in the new population away from those in the progenitor population would only be prevented if these processes were balanced by repeated immigration and subsequent breeding: song flow.

Closely related species of birds are also chromosomally similar.

Exchange of breeding individuals between two populations tends to homogenize their gene pools.

The independent role of morphology in mate choice is revealed by the rare instances where the usual association between song and morphology is disrupted.

Wherever on this planet ideals of personal freedom and dignity apply, there you will find the cultural inheritance of England.

Inheritance taxes are so high that the happiest mourner at a rich man's funeral is usually Uncle Sam.

I have also seen children successfully surmounting the effects of an evil inheritance. That is due to purity being an inherent attribute of the soul.

Our ideals, laws and customs should be based on the proposition that each generation in turn becomes the custodian rather than the absolute owner of our resources - and each generation has the obligation to pass this inheritance on in the future.

Looking back 25 years later, what I may say is that the facts have been far better than the dreams. In the long course of cell life on this earth it remained, for our age for our generation, to receive the full ownership of our inheritance.

The finest inheritance you can give to a child is to allow it to make its own way, completely on its own feet.

Every time I took a long leave from home, I felt as if I were going to conquer the world. Or rather, take possession of what is my birthright, my inheritance.

Never say you know a man until you have divided an inheritance with him.

It appears that the present-day form of African American English is not the inheritance of the period of slavery, but the creation of the second half of the 20th century.

This is all the inheritance I give to my dear family. The religion of Christ will give them one which will make them rich indeed.

After all, we are not French and never can be, and any attempt to be so is to deny our inheritance and to try to impose upon ourselves a character that can be nothing but a veneer upon the surface.

It reflects a prevailing myth that production technology is no more amenable to human judgment or social interests than the laws of thermodynamics, atomic structure or biological inheritance.

Almost nothing is known from hybridization studies about the inheritance of courtship behavior of females, or of their responsiveness to particular male signals.

Experiences are savings which a miser puts aside. Wisdom is an inheritance which a wastrel cannot exhaust.

Some believe all that parents, tutors, and kindred believe. They take their principles by inheritance, and defend them as they would their estates, because they are born heirs to them.

We are all gifted. That is our inheritance.

I felt there's a wealth in Jewish tradition, a great inheritance. I'd be a jerk not to take advantage of it.

In particular, for younger researchers on whom the future of mankind may depend. We believe that they are working with all the scientific wisdom at their disposal for the preservation of the inheritance of the earth and for the lasting survival of mankind.

As to honor - you know - it's a very fine mediaeval inheritance which women never got hold of. It wasn't theirs.

Everybody gets everything handed to them. The rich inherit it. I don't mean just inheritance of money. I mean what people take for granted among the middle and upper classes, which is nepotism, the old-boy network.

Books are the treasured wealth of the world and the fit inheritance of generations and nations.

The best inheritance a parent can give his children is a few minutes of his time each day.

There are historic situations in which refusal to defend the inheritance of a civilization, however imperfect, against tyranny and aggression may result in consequences even worse than war.

In fact, the history of North America has been perhaps more profoundly influenced by man's inheritance from his past homes than by the physical features of his present home.

Christianity, democracy, science, education, wealth, and the cumulative inheritance of a thousand years, have not preserved us from the vain repetition of history.

I am better able to imagine hell than heaven; it is my inheritance, I suppose.

Thus the genetic basis to the origin of bird species is to be sought in the inheritance of adult traits that are subject to natural and sexual selection.

One of the strongest and most persistent elements in national development has been that inheritance of political traditions and usages which the new settlers brought with them.

The white man's blood and bones have begotten this bronze race, and bequeathed to it in some degree qualities, tendencies, capabilities, such as are the inheritance of the highest order of human animals.

The United Nations organization has proclaimed 1979 as the Year of the Child. Are the children to receive the arms race from us as a necessary inheritance?

Strong, generous, and confident, she has nobly served mankind. Beware how you trifle with your marvellous inheritance, this great land of ordered liberty, for if we stumble and fall freedom and civilization everywhere will go down in ruin.