Emory's Primate Research Center, Yerkes, is now free to send seven of its research chimps to a zoo in England.
Animal rights groups sued to block the transfer. But they lost their case this past week.
The New England Anti-Vivisection Society President Theodora Capaldo, who has led the effort, said they have now written a letter to Emory asking the university to change course.
"Yerkes out of an ethical obligation should be voluntarily not sending those chimps," Capaldo said.