Sentences with phrase «siring offspring»

They can access the most preferred fishing spots when they choose, easily appropriate food from other bears, and have a higher likelihood of courting female bears and siring offspring.

When a female mates with more than one male, the suitors do not have an equal shot at siring her offspring.

Boulay is already on the case: His next step is to compare the effects of different personalities on the ability to sire offspring, as well as investigate the group personalities of invasive ant species.

Hermaphrodites fertilize their own eggs, but males can sire offspring only by mating with hermaphrodites.

The more dominant a male is, the more likely he is both to succeed in finding a mate and to sire offspring.

That's why Michael Myers became part of the Thorn cult and Freddy Krueger sired offspring while his own backstory continued to blossom.

Not exact matches

First Things» heroic refusal to countenance a Catholic Shakespeare reminds one of the descendants of an esteemed ancestor who recently has been suspected of siring illegitimate offspring by a slave girl.

Famers buy the semen of small bulls who are known to have sired small headed and small bodied offspring.

The analysis shows Medal of Honor recipients had an average of 3.18 children, while regular veterans averaged 2.72 children, suggesting decorated war heroes sired more offspring than other veterans.

None of the 21 offspring Snowflake sired are albino, nor are any of his six grandchildren.

«Consistent with previous genetic descriptions of anole mating systems, most females — 64 to 81 percent — bore offspring sired by more than one male,» Kamath said.

At its most posthumously successful, stored ghost sperm sired about one in four of the offspring among wild guppies released into a stream, evolutionary biologist Andrés López - Sepulcre of École Normale Supérieure in Paris and his colleagues report June 5 in Proceedings of the Royal Society B.

They collected DNA samples from 96 females, 131 putative sires and 458 offspring among a population of lizards living in California during the 1992 breeding season, and ran several different rounds of paternity testing.

In her study of eight generations of red deer in Scotland, she noticed a curious pattern: The most prolific male deer sired daughters that tended to have fewer offspring, while the worst male breeders (the deer equivalent of ugly) fathered females that had more offspring.

«Where females are widely dispersed,» says Clutton - Brock, «the best strategy for a male is to stick with one female, defend her, and make sure that he sires all her offspring.

Furthermore, these larger males sired more offspring.

The males are equipped with genes that cause any female offspring they sire to die while they are still in the larval stage, before they have had a chance to reproduce.

A baboon male would normally have to wait at least a year for a pregnant or lactating female to finish gestating and nursing her infant and resume cycling for a chance to sire her next offspring.

The Bateman principle, as it is known, assumes that males sire more offspring if they mate with more females, while females stick with a single mate because they are limited in how many young they can produce regardless of their hanky - panky.

Unfaithful males sire more offspring outside of their own nests.

After 22 generations, males in the long - stalk lineage fathered more male offspring than previously, while ones from the short stalk camp sired predominantly daughters.

What's more, females can lay an egg almost every day, and a single male can sire thousands of offspring each year.

Aggressive male chimpanzees who use their strength to sexually intimidate females sire more offspring than more passive males, a new study has found.

Mammalogists have proposed several functions — from keeping the penis stiff during copulation to signaling the fitness of a male — but, so far, the only idea with strong support comes from a study of mice in which the width of the baculum was tied to how many offspring the males sired.

Stud Dog owners should disclose to owners of bitches who wish to use their dog that the dog is a known carrier (by virtue of it being out of an affected parent or having itself sired affected offspring, or by virtue of it having been genetically identified as a carrier for the Cord1 mutation), even though the Stud Dog may himself have a current clinically clear eye certificate.

Acquiring a dog from a reputable breeder who uses Penn HIP or Orthopedic Foundation for Animals (OFA) techniques to evaluate the sire and dam's hip health can reduce the likelihood that the offspring of normal parents will develop hip dysplasia.

Specifically, it will not register puppies with sires and dams of less than 2 degrees of separation, e.g. offspring of father and daughter pairings are not registrable.

The natural skills and intelligence of the parents are generally passed to at least some of the offspring, so the best breeders take care in matching sire and dam not only for their beauty, structure, and health, but for their brains and abilities.

A dog registration certificate simply tells you that a puppy is the offspring of a particular dam (mother) and sire (father) and the date on which the puppy was born.

It involves the registering of puppies from a litter with multiple sires, based on DNA - testing of the offspring.

Around the turn of the twentieth century, short little terriers called Cantab or Trumpington terriers were in fashion at Cambridge University, and one in particular, named Rags, was particularly well - known as a talented ratter with great virility — he sired many offspring.

However, the sex of their offspring is always determined by the sire, who has both «X» & «Y» chromosome verses the dam, who has two «X» chromosomes.

He found that the dam's influence on her offspring was greater than that of the sire by as much as ten percent.

The Register of Merit (ROM) and Register of Merit Excellent (ROMX) Awards have been established to recognize a sire or dam's outstanding contribution to the Nova Scotia Duck Tolling Retriever breed in Canada through the accomplishments of their offspring.

This title is given to a sire once he has had 10 offspring obtain their championship title.

It is believed that this mother was an offspring of the unnamed and untouchable tin mine troubadour, and that this litter was sired by him as well.

Less will be known about these sires because they will be used less often and they will have fewer litters and offspring to be seen.

He sired countless offspring and is the patriarch of the modern Norwich.

DNA testing of sires, dams and offspring takes doubt out of the screening and selection process.

Many sires, both affected and unaffected, produce far more offspring than the recommended limit of 105 puppies, which makes it quite difficult to measure the effect of preventive actions, and to control inherited diseases, such as distichiasis, within a population.

The sires and dams that consistently produce such versatile offspring shall be recognized by the Labrador Retriever Club by offering a Versatile Producer of Merit award.

Those of her offspring sired by Flock St. Salvator and Wotan dominate all present - day.»

It is important to remember that breeding · clear · dogs does not absolutely guarantee that puppies will be unaffected, as it is not usually possible to determine which genes both dam and sire carry and how their combinations will affect offspring.

This contest would indirectly lead to the first border collies, by way of a dog named Hemp, who so distinguished himself in trials that he sired a great number of offspring.

Another fancier interceded, and the dog became a sensation as a show dog, going on to sire an incredible number of offspring.

That said, if one momma repetitively gives birth to FIP - prone offspring or one tom persistently sires more FIP - prone kittens than another, it should be take out of the breeding program.

DNA Profiles also serve as a tool for breeders who need to keep DNA Profile records of their breeding stock (dams and sires) in case a parentage verification of their offspring is ever needed in the future.

Test breeding of epileptic dams and sires done by veterinary researchers have produced incidences of epilepsy in the offspring ranging from between 38 % (affected to nonaffected) to 100 % (breeding together of two affected dogs).

Huddersfield Ben not only was one of the early stars of the dog show scene, but was also one of the first sires to have consistently produced offspring who weighed less than 5 pounds.

The sire and dam's hip health can reduce the likelihood that the offspring of normal parents will develop hip dysplasia, and other problems.