after they grow one of them is bigger than the others.
usually they move at dawn or evening,
but one night the bigger one just scratches everywhere and it fell off the plant, my mum tries to but it back on the plant but it still move everywhere and still attempt 'suicide.
What's happening? i really want to see it become butterfly.
Sorry for poor english
更新1:
I think its my mum using cotton swap so it feels uncomfortable?