Your pets probably don't understand that in nine months a new baby will be joining your family, but dogs and cats do detect differences in mood, posture, behavior, and body chemistry that clue them that an enormous change is happening. Your dog or cat will pick up other signs, too: Our four legged

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Advances in science have enabled the decoding of several animals' DNA. Knowing the genome of a species has enabled medical professionals to detect some diseases that have a genetic basis. But it also has other uses, even in the criminal justice system. The Veterinary Genetics Laboratory Forensic Unit

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