Hamster · Life stages

Approximate age ranges for Hamster and the priorities of each stage.

  1. 1

    Juvenile

    Birth – 3 months

    Hamsters grow fast in their first three months and settle into their new home. A quiet first week, a well set-up habitat and patient introductions are the foundations of this stage.

  2. 2

    Adult

    3 months – 18 months

    Between 3 and 18 months, hamsters are at their most active and exploratory. A rich habitat, respect for their night-time rhythm and regular weighing make this stage a happy one.

  3. 3

    Senior

    18 months and older

    Hamsters can show signs of ageing from about 18 months of age. An easy-access layout, a warm and quiet nest, softer food options and close monitoring make this stage more comfortable.

Age ranges are approximate; differences within a species (such as size in dogs) can shift the transitions earlier or later.