Life cycles require the creation of an autonomous individual, that individual’s growth and that individual’s reproduction In sexual reproduction, gametes containing a single set of chromosomes combine ...
Many mountain gorillas keep living - vigorous and socially engaged - for a decade or more beyond the years of reproduction.
As dogs and humans age, the kidneys become less effective, and the study authors found that as kidney function declines, the amino acids build up, possibly explaining why some dogs age more healthily ...