As you may already know, Trygve is the person who recently had his grandfather from Norway frozen. Dec. 1 on your calendars to support the Thomas Donaldson Defense Fund at a Fund Raising Dinner at the Wrightwood, CA community hall. As he has mentioned in the pages of The Immortalist, Robert Ettinger is writing a book on his philosophy of life. The results were very similar to the results for rabbit kidneys and different from the results for pig kidneys. Greg indicated that death is programmed, not just wear and tear.
Several species die soon after reproduction.
In particular, the rapid senescence of salmon after spawning is striking. On the other hand, some organisms seem to be immortal. Chaparral at least 20,000 years old has been found that was apparently planted just after the last ice age. Mike West has shown a genetic mechanism for programmed senescence in vitro. He can turn this on and off in a culture repeatedly.