Its easy to say "no", but stick insects might indeed think, but not in a way humans do. All animals think - whether it to decide with leaf to eat or how to interact with another of its species. Many of these things are instinct-driven, but an animal does indeed have to use its brain to make descisions.
Not normally, but if you have babies in a tank with adults they might eat them, but probably won't. Some eat their shedded skin though.
They probably prefer being left alone but if you feed them and give them all they need I'm sure they don't mind :D However they are really nice pets to have, really easy to keep.
No, they will sizzle like a fish in the dessert (and die)
yes although spiky ones may hurt
No, stick insects do not eat grasshoppers.
Stick insects live in trees. Normally in forests or bushes.
They look like a stick.
No
Stick Insects do not have hobbies even though they like some diiferent types of things. I tried this to my stick insects, play diiferent types of music and see their reactions.
Nearly all stick insect species are harmless and are not toxic. None cat actually deliver a bite as all stick insects have evolved to nibble the edges of leaves, and none have stingers. However, the Two-Striped Walking Stick (Anisomorpha buprestoides) is said to have a defensive spray that can cause temporary blindness if caught in the eyes. Other stick insect species can also spray but have no harmful effects.
They do not actually like or dislike their owners.
All insects have spiracles. This is how they breathe because they do not have lungs like vertebrates do!
Unlike humans, Stick insect do not have intimate relationships. Their love life is based on the mega version of one night stands.
It varies between the Stick Insects like a Spiny Leaf the females live to 18 months, males 1Yr.
Because they look like sticks.
Maybe to help them balance in the tree branches they camoflauge in.