RIP Richard Adams. Watership Down was and is one of my alltime favourite novels.
I think instead of trying to say anything of my own I'm just going to post this quote from the novel that his family used in the statement about his recent passing. It seems an appropriate thing to say about someone who lived 96 years.
"It seemed to Hazel that he would not be needing his body any more, so he left it lying on the edge of the ditch, but stopped for a moment to watch his rabbits and to try to get used to the extraordinary feeling that strength and speed were flowing inexhaustibly out of him into their sleek young bodies and healthy senses.
"You needn't worry about them," said his companion. "They'll be alright - and thousands like them."