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

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.

Spry is not a look, spry is behavior.

Behavior is the mirror in which everyone shows their image.

The civilizing process has increased the distance between behavior and the impulse life of the animal body.

Beauty set up distance between other people and me. It warped their behavior.

I try as best I can to enter the realm of nuances of human behavior.

I'm always looking, as an actor, for activities. I think it's far more interesting to watch what people do than what they say. You always want to watch behavior, because the dialogue as written by our illustrious leaders is great. Eminently playable.

The mind cannot support moral chaos for long. Men are under as strong a compulsion to invent an ethical setting for their behavior as spiders are to weave themselves webs.

No matter how calmly you try to referee, parenting will eventually produce bizarre behavior, and I'm not talking about the kids. Their behavior is always normal.

You can't legislate or litigate good, healthy behavior but we must be willing to educate people at an early age about the affects of unhealthy living.

The orbs create feedback loops that can influence either personal of employee behavior.

Many working mothers feel guilty about not being at home. And when they are there, they wish it could be perfect. This pressure to make every minute happy puts working parents in a bind when it comes to setting limits and modifying behavior.

You were saying that once when visiting Yale, you were struck that unlike Pound, Williams's thinking was volatile, I mean, did not stay locked into a pattern of concepts that then defined his subsequent necessary behavior, whereas Pound did.

We must consider the distinctive characters and the general nature of plants from the point of view of their morphology , their behavior under external conditions, their mode of generation, and the whole course of their life.

I have always had school sickness, as others have seasickness. I cried when it was time to go back to school long after I was old enough to be ashamed of such behavior.

The quality of moral behavior varies in inverse ratio to the number of human beings involved.

I always say centered food equals centered behavior.

Perhaps it is because cats do not live by human patterns, do not fit themselves into prescribed behavior, that they are so united to creative people.

I like analyzing human behavior. It's complex. That's what keeps me going.

It's better to hang out with people better than you. Pick out associates whose behavior is better than yours and you'll drift in that direction.

But you can't show some far off idyllic conception of behavior if you want the kids to come and see the picture. You've got to show what it's really like, and try to reach them on their own grounds.

We can only undo the election if the behavior meets the constitutional standard of subverting and threatening our system of government.

If you start using a medication in a person with autism, you should see an obvious improvement in behavior in a short period of time. If you do not see an obvious improvement, they probably should not be taking the stuff. It is that simple.

The experience and behavior that gets labeled schizophrenic is a special strategy that a person invents in order to live in an unlivable situation.

If Baltimore's view, that scientists who do not take the words of authorities are far removed from the ordinary behavior of scientists, prevails in the scientific community, then something fundamental, very serious, and very disturbing is happening to the scientific community.

Good behavior is the last refuge of mediocrity.

Everyone takes surveys. Whoever makes a statement about human behavior has engaged in a survey of some sort.

Rational behavior requires theory. Reactive behavior requires only reflex action.

Genocide is an attempt to exterminate a people, not to alter their behavior.

Study the public behavior of top stars and you can detect a keen attentiveness to brand value.

Even in decline, a virtuous man increases the beauty of his behavior. A burning stick, though turned to the ground, has its flame drawn upwards.

The business schools reward difficult complex behavior more than simple behavior, but simple behavior is more effective.