You can go to class_ownedadoptable.php and modify the getGender() function to, for example, hide the gender when the adopt is under a certain level. Something like this:
PHP Code:
public function getGender($fetchMode = ""){
$showGenderAtLevel = 1;
if($this->currentlevel < $showGenderAtLevel) {
//don't show gender
if($fetchMode == Model::GUI) return new Image("picuploads/NO_GENDER.png");//or whatever your image for unknown gender is
else return "Unknown";
}
else {
//show gender
if($fetchMode == Model::GUI) return new Image("picuploads/{$this->gender}.png");
else return $this->gender;
}
}