Complex sentence: Sexual maturity develops at around twelve months but has been documented to commence at 4 months and brred in the season of their birth, continuing until females are three and a half years old, with a life expectancy of 3-4 years.
Split into simpler sentences: Sexual maturity develops at around twelve months but has been documented to commence at 4 months and breeding in the season of their birth. They are able to continuing breeding until females are three and a half years old, and have a life expectancy of 3-4 years.