It can be inferred that research conducted at zoos has led to increasing the lifespans of zoo animals.

Question

Which detail from “The Importance of Zoos” best supports this inference?

Responses

“Studies show that some zoo animals have longer lifespans than they would in the wild.”
“Studies show that some zoo animals have longer lifespans than they would in the wild.”

“Zoo animals receive expert medical care.”
“Zoo animals receive expert medical care.”

“By studying zoo animals, scientists have discovered new medicines and new techniques to improve the health of animals living in captivity and in the wild.”
“By studying zoo animals, scientists have discovered new medicines and new techniques to improve the health of animals living in captivity and in the wild.”

“Organizations like the American Humane are working with zoos to set standards, or rules, to ensure animals receive the best care.”
“Organizations like the American Humane are working with zoos to set standards, or rules, to ensure animals receive the best care.”

Answer 1

The detail that best supports the inference that research conducted at zoos has led to increasing the lifespans of zoo animals is:

“Studies show that some zoo animals have longer lifespans than they would in the wild.”

This statement directly indicates a comparison of lifespans between zoo animals and their wild counterparts, suggesting that the conditions and care provided in zoos contribute to longer lifespans.