5 days old

eating well and filling its skin. Less than 1/8 inch at birth and now obviously thriving, wrinkles rapidly filling out. Caterpillars have wrinkled skin and they eat to "fill" that skin. When it can hold more more, it splits, sloughs off and the new skin is wrinkled too. Cycle repeated until pupation, but that's another story... Vapourer moth larva.
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[Milanie]

That's quite interesting about how they grow

[KoalaGardens🐨]

munch munch!

[Jesika]

@milaniet the opposite way round to we humans - we start off smooth and end up wrinkly! Each new caterpillar skin is bigger than the one before, eat until full. They literally eat their fill.

[bkb in the city]

Great capture