Except pursuant to a permit for scientific research, or for enhancing the survival or recovery of a species or stock, issued under section
1374
(c) of this title, it is unlawful to import into the United States any marine mammal if such mammal was—
Notwithstanding the provisions of paragraphs (1) and (2), the Secretary may issue a permit for the importation of a marine mammal, if the Secretary determines that such importation is necessary for the protection or welfare of the animal.