How long have platypuses been around?

Platypuses in captivity have been recorded as living to at least 16 years. However, because they are such reclusive creatures, little research has been done on platypus lifespans in their natural state.

Whilst research has not yet established the life span of a platypus in the wild, it is believed to be about 10 years. It is estimated that, due to predation by goannas and snakes, platypuses in their natural habitat probably live closer to 4-5 years for males and 6-8 years for females.