Hungry caterpillar or hairy caterpillar?

Both I suspect!
I was working at the library today and the children’s’ summer reading challenge has started. The aim is to get children reading throughout the summer and using their libraries of course. Each year has a theme to ‘the prizes’ and this year it is the natural world. So each branch has a butterfly cage and we’re given caterpillars to hatch. As you can see they are getting big and hairy