The number of opossum babies that survive is limited by what anatomical feature?

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Study for the New York State Wildlife Rehabilitation Exam. Prepare with flashcards and multiple-choice questions, each with explanations. Get ready for your certification!

Multiple Choice

The number of opossum babies that survive is limited by what anatomical feature?

Explanation:
In opossums, the number of babies that can survive is determined by how many nipples the mother has. Newborn joeys are tiny and must crawl to a teat to nurse; each nipple can nourish only one joey. Therefore, the maximum viable litter size is limited by the finite number of nipples. Environmental factors or the mother’s age or weight can influence overall survival and reproductive success, but they don’t set the fixed cap on how many young can be sustained by nursing.

In opossums, the number of babies that can survive is determined by how many nipples the mother has. Newborn joeys are tiny and must crawl to a teat to nurse; each nipple can nourish only one joey. Therefore, the maximum viable litter size is limited by the finite number of nipples. Environmental factors or the mother’s age or weight can influence overall survival and reproductive success, but they don’t set the fixed cap on how many young can be sustained by nursing.

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