Echidna mothers change their pouch microbiome to protect tiny ‘pink jelly bean’ puggles, new research finds

Egg-laying monotremes have no nipples, so young rub their beaks against milk patch' to get milk from mother's skin

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When echidna mothers nurse their young, known as puggles, the microbiome of their pouch changes to protect their babies in their first weeks of life, new research has found.

These first few weeks are critical for puggles. At this early developmental stage, they are tiny - roughly the size of a 5-cent coin - and vulnerable.