When they see something that look familiar, or smell something like food, and when they see some familiar face.
Like if you are in the park playing soccer, and you see some familiar dog that belong to you long time ago.
Gary thought it was funny to wear an ape suit. A real gorilla noticed him.
Answer:
Biological families are related by blood. Voluntary families it means a non-biological parents is a legal parent to a child.
Explanation:
The father and mother whose DNA a child carries are usually called the child’s biological parents. Legal parents have a family relationship to the child by law, but do not need to be related by blood
