Sea Lions Jul 28, 2006 13:37:41 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Morocco Rock Fox on Jul 28, 2006 13:37:41 GMT -5 Female sea lions can reach sizes up to 6 feet and weigh about 200 lb. Males can reach lengths of 6 to 8 feet and weigh 440-880 lb.