Approximately what fraction of research animals are rodents?

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Study for the Comprehensive Guide to Animal Use and Care in Biomedical Research Test. Learn with flashcards and multiple-choice questions, each offering hints and explanations. Prepare thoroughly for your exam!

Multiple Choice

Approximately what fraction of research animals are rodents?

Explanation:
Rodents dominate the pool of animals used in biomedical research because they fit practical needs: they are small, inexpensive to care for, reproduce quickly, and there is extensive genetic and biological knowledge and tools available for them. Because of these advantages, they make up the vast majority of research animals. In many sources, about 90 to 95 percent of research animals are rodents, with other species making up the rest. So, the best approximation is about 90-95 percent. This isn’t all animals, and the share isn’t as low as a quarter or half.

Rodents dominate the pool of animals used in biomedical research because they fit practical needs: they are small, inexpensive to care for, reproduce quickly, and there is extensive genetic and biological knowledge and tools available for them. Because of these advantages, they make up the vast majority of research animals. In many sources, about 90 to 95 percent of research animals are rodents, with other species making up the rest. So, the best approximation is about 90-95 percent. This isn’t all animals, and the share isn’t as low as a quarter or half.

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