A new study has found an effective way to cryopreserve and subsequently transplant ovaries of the multicolored Asian ladybird beetle, Harmonia axyridis. In mammals (including humans), long-term cryopreservation of fertilized eggs, sperm and ovaries is possible. However, in insects, cryopreservation of fertilized eggs has not been successful, and cryopreservation of sperm and ovaries has been put to practical use only in silkworms.