Animal riddles

I have a very long body. I can be very poisonous and deadly but I cannot walk. What am I?

I love banana. I can climb trees but I cannot fly. What am I?

I love carrots. I can jump but I cannot swim. What am I?

I have a very long neck. I can eat leaves on the trees but I cannot eat meat. What am I?

I have feathers. I can fly but I cannot swim. What am I?

I look like a dog. I can howl but I cannot eat vegetables. What am I?