Ответ:
1. If a wallaby is caught in the open grassland, it lies down and doesn't move a muscle hoping not to be seen.
2. When a baby kangaroo sees something dangerous, it hides into his mother's pouch.
3. An echidna curls itself into a ball if there is a danger.
4. When a lyrebird is scared, it runs away.
5. A Wombat makes aggressive sounds if it wants to drive away another Wombat from its territory.