I'm currently researching the common midwife toad (Alytes obstetricans) and there are a few aspects of it's life history I can't find information for in the search I have so far carried out in the literature. A few websites (which aren't referenced) have stated that the toads can live up to eight years in the wild but an average lifespan is about 5 years. Other web sources also state that sexual maturity takes about 2-3 years. Can anyone please point me to any sources from peer-reviewed articles that either backup or refute these claims?