Yes they do. And many of them.
No, caterpillars are artropods, or insects, and only molluscs have muscular feet.
Unknown. The number of caterpillars are always changing.
no
No
No
Birds
Yes, many do, especially the tanagers, which also are death on wasps and bees!
They have none because when you sqush it nothing breaks lol
yes
by eating plants
Not really.