A summary of animal science

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A summary of animal science

Evolution of monogamy Monogamy occurs when one male mates with one female exclusively. A monogamous mating system is one in which individuals form long-lasting pairs and cooperate in raising offspring. These pairs may last for a lifetime, such as in pigeons[6] or it may occasionally change from one mating season to another, such as in emperor penguins.

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Zoologists and biologists now have evidence that monogamous pairs of animals are not always sexually exclusive. Many animals that form pairs to mate and raise offspring regularly engage in sexual activities with extra-pair partners. Sometimes, these extra-pair sexual activities lead to offspring.

Genetic tests frequently show that some of the offspring raised by a monogamous pair come from the female mating with an extra-pair male partner. Social monogamy refers to a male and female's social living arrangement e.

In humans, social monogamy takes the form of monogamous marriage. Sexual monogamy is defined as an exclusive sexual relationship between a female and a male based on observations of sexual interactions.

Finally, the term genetic monogamy is used when DNA analyses can confirm that a female-male pair reproduce exclusively with each other. A combination of terms indicates examples where levels of relationships coincide, e. Social monogamy, sexual monogamy, and genetic monogamy can occur in different combinations.

Social monogamy is relatively rare in the animal kingdom. The actual incidence of social monogamy varies greatly across different branches of the evolutionary tree.

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Sexual monogamy is also rare among animals. Many socially monogamous species engage in extra-pair copulationsmaking them sexually non-monogamous.

But genetic monogamy is strikingly low in other species. Barash and Lipton note: The highest known frequency of extra-pair copulations are found among the fairy-wrenslovely tropical creatures technically known as Malurus splendens and Malurus cyaneus.

They can no longer assume social monogamy determines how genes are distributed in a species. The lower the rates of genetic monogamy among socially monogamous pairs, the less of a role social monogamy plays in determining how genes are distributed among offspring.Animal Science/Veterinary Assisting is a two-year program, and after learning the basics of working with animals in year one, during the second year, students will be out on internships the majority of the time.

Animals (ISSN ) is an international peer-reviewed open access journal devoted entirely to animals, including zoology and veterinary sciences, published monthly online by MDPI.. Open Access free for readers, with article processing charges (APC) paid by authors or their institutions.; High visibility: indexed by the Science Citation Index Expanded (Web of Science) from Vol.

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5 ( Behavioral Genetics and Animal Science TEMPLE GRANDIN AND MARK J. DEESING Genetics and the Behavior of Domestic Animals (Chapter One) Acedemic Press Science can be full of difficult decisions Scientists who design drugs and other medical treatments have to make difficult decisions about testing drugs on animals.

Part 2 of SPECIFIC HEALTH PROBLEMS.

A summary of animal science

Walter Last. Read the Introduction at Part 1 of SPECIFIC HEALTH PROBLEMS. Kidney Problems. Nearly all kidney failures could be prevented and the need for dialysis avoided or reversed when taking 1 teaspoon of sodium bicarbonate 3 times daily in a large glass of water before meals to keep urine pH between and Use a diet low in protein, salt, food.

Summary of State Laws Relating to Private Possession of Exotic Animals. The sale and possession of exotic animals in the United States is regulated by a patchwork of federal, state, and local laws that generally vary by community and by animal.

Summary of Animal Science