On an individual level, hybrid animals sometimes have reproductive, health or behavioral issues due to their genetics. Ecologically, hybrids blur the lines of species and pose problems for conservation. More »

A wolf hybrid results from mating between a wolf and a domestic canine. The resulting animal technically is not a hybrid since dogs are a sub-species of wolves; however, the term "hybrid" is commonly used to refer to any... More »

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A coyote-dog hybrid, also called a coy-dog, is a canine which possesses both dog and coyote DNA. Coyotes are capable of producing fertile offspring with both domestic dogs and wolves. However, the differing behavioral tr... More »

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In genetics, pure breeding involves creating offspring by mating two parents that are genetically similar. Also called true breeding, it is the opposite of a hybrid. More »

Animals that give birth to live young are called viviparous animals. In viviparous animals, the mother's egg is fertilized by the father's sperm inside her body and, after a brief gestational period, the young animal is ... More »

The State University of New York states that animals reproduce by several sexual and asexual methods, with sexual reproduction, defined as the production of gametes with half of each parent's DNA and their union into dip... More »

The animals that have a true appendix include primates, the great apes, opossums and wombats. Other animals that have an appendix include mole-rats and rabbits. Many animals that do not have a true appendix still have an... More »