Large-brained frogs mature later and live longer.

摘要: Brain sizes vary substantially across vertebrate taxa, yet, the evolution of brain size appears tightly linked to life histories. For example, larger brained species generally live longer than smaller species. A requires more time grow and develop at a cost exceeded gestation period delayed weaning age. The slower development may be compensated by better homeostasis control increased cognitive abilities, both which should increase survival probabilities hence span. To date, this relationship between span seems well established in homoeothermic animals, especially mammals. Whether pattern occurs also other clades vertebrates remains enigmatic. Here, we undertake first comparative test an ectothermic group, anuran amphibians. After controlling for effects shared ancestry body size, find positive correlation age sexual maturation, 40 frogs. Moreover, that ventral regions, including olfactory bulbs, are long-lived Our results indicate history follows general clades.