Also, gum disease has been found in some individuals. The average life span of an orca is 50 years for females and 30 for males. Again there is no complete data to be sure of anything. Other species tend to have 3-6 calves in their lifetime. The longest recorded is 17 minutes but commonly they stay about 6 minutes underwater.
Most cetaceans swim faster under water.
Any other information that you have would be very helpful. Program Macalester College 1600 Grand Ave.