Tripp_Bay_Seal_3 - To work with Weddell seals we first use a light sedative and then glue our tag to their head using 5 minute epoxy.  However, before we glue the tag, we need to make sure that the animal has fully molted.  The animals molt once a year at this time, so if we put the tag on an animal that is molting it will fall off within a few weeks.  If done properly the tag will last up to a year until the next molt when we either remove the tag or it falls off with the molt.