SEATTLE (AP) — A small barrel roll gave Washington whale watchers a gender reveal over the weekend and reason to be hopeful about a pod of endangered southern resident orcas that frequent Puget Sound. SeattlePI.com reports the Center for Whale Research confirmed that the J pod’s newest calf, J58, is a female. The 6-month-old calf was seen rolling onto her back, revealing her underside which allowed researchers to determine the gender. The calf was born last September to J41 off the waters of Vancouver, British Columbia.