Tenn. Zoo Breeds Endangered Frogs

By KRISTIN M. HALL, Associated Press Writer, General Science / Biology

(AP) -- A new breeding program at the Memphis Zoo could nearly double the known population of an endangered frog species. Biologists estimate there are only about 100 adult Mississippi gopher frogs left in the wild, but zoo officials say they've successfully produced 94 tadpoles through in-vitro fertilization.

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