Alpha-sapphire: Its flotation sac developed as a result of pursuing aquatic prey. It can double as a rubber raft.Omega-ruby: It floats using its well-developed flotation sac. It assists in the rescues of drowning people.White-2: It is a common sight around fishing ports. It is known to rescue people and carry off prey.
Gender Differences: Male has two white bumps on his back while female has one