Mind you, there's a danger in too much interbreeding and it's no different with human beings.

However, recent genetic data show that the replacement process did include some interbreeding.

How good of a match can you expect, especially given the interbreeding in the early years?"

Due to recent interbreeding between the two types, the distinction is becoming less clear.

His research has suggested that there was some interbreeding.

Since there was almost no interbreeding between them, it would seem that social interactions did not go much beyond trading.

This interbreeding can threaten the existence of the original wild population.

The identity of the Southern red wolf has been clouded by just such interbreeding.

Without reinforcement the two populations or species would have uncontrollable interbreeding.

But indicative of continuing massive interbreeding, so it goes indeed back to the earlier forms.

Interbreeding is rare, and you don't know what you'll get."

However, the exact extent of this interbreeding is unknown.

This interbreeding is rather common due to the high numbers of feral Mallards.

Early in my world's founding vigorous interbreeding was encouraged to build up genetic diversity.

Such interbreeding can reduce genetic diversity, disease resistance and adaptability.

There are some areas, such as Iran and central Russia, where little or no interbreeding occurs.

If he is right, contact between modern humans and Neanderthals was fleeting at best, with no interbreeding.

Still, multiple areas that fit this description can provide an indication of archaic interbreeding.

Whatever had the original Intergal committee been thinking of to allow such interbreeding!

Like the elements of human culture, human-Neanderthal interbreeding is likely to have happened later than the film is set.

Species often arise, he held, when barriers like mountains or deserts prevent the interbreeding of populations.

All that interbreeding, one would think, would blur the lines between species, reducing diversity.

However, some researchers have argued that there is evidence of possible interbreeding between female Neanderthals and male modern humans.

Interbreeding of the various types were common especially between Angoras and Persians.

Their customary self-definitions may have been cultural rather than racial because some interbreeding was important for healthy genetic diversity.

If interbreeding is no longer possible, then they will be considered different species.

I do not think it is possible for our two species to interbreed.

It interbreeds with several other species found in its range.

It's pretty safe to say that would not be able to interbreed.

They were still close enough to the other palms to interbreed.

It is not known how much contact the three species had, or if they could interbreed.

On Earth, after a time, the two races could interbreed.

But they were sufficiently human that he could interbreed with them.

You can't tell me we can even interbreed with them.

These species will often interbreed with each other where two members of the group occur.

However, they are able to interbreed with other races, such as humans.

If possible, two or more separate lines are started, never allowing them to interbreed.

This is thought to be the first recorded case of interbreeding in the wild.

But he had also said that the two were closely linked because they could interbreed.

There are many factors that prevent any two populations from interbreeding.

Neither approach, he said, provided any indication of interbreeding between the two species.

At the same time, they never interbreed with others of their species that evolved on a different plant.

A population can be defined as a group of interbreeding individuals and their offspring.

The trick is to keep the strains from interbreeding in the garden.

He was a hybrid, they concluded, and the first strong physical evidence of interbreeding between the groups in Europe.

Another problem is that reptile-men and human stock now interbreed.

Interbreeding in the wild has been reported between many members including:

I thought the boundary between species was that they couldn't interbreed.

We are not talking about interbreeding (or crossbreeding) between two different species.

There is no pressure to compete or interbreed (two responses when resources are short).