- Shelter is a kind of place / building / structure for protection
- Animals usually live in protected places
- So, a shelter is used for living in by animals

- A shelter is used for living in by animals
- A raccoon is a kind of animal
- So, a shelter can be used for living in by raccoons

- A shelter can be used for living in by raccoons
- Some raccoons live in hollow logs
- Hence, an example of a shelter is a raccon living in a hollow log

Therefore, an example of a shelter is a raccon living in a hollow log
[Question]What is an example of a shelter in an ecosystem?
[Context]- Shelter is a kind of place / building / structure for protection 
- Animals usually live in protected places 
- A raccoon is a kind of animal 
- Some raccoons live in hollow logs