SAN JUAN, Puerto Rico — A critically endangered Puerto Rican toad was born for the first time via in vitro fertilization as U.S. scientists attempt to save it from extinction, officials announced ...

Scientists with the Fort Worth Zoo in Texas are celebrating some very encouraging news about the future of a critically endangered species. The first Puerto Rican crested toad was born via in-vitro ...

SAN JUAN, Puerto Rico (AP) - A critically endangered Puerto Rican toad was for the first time born via in vitro fertilization as U.S. scientists attempt to save it from extinction, officials announced ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SAN JUAN, Puerto Rico (AP) — A critically ...