Can animals laugh like people? Why do we laugh?
Can animals laugh? Why do we laugh? What does it mean?
We laugh because it means we want to keep doing it, we are having fun, we are happy.
Are crows smart? How do you know? Can they use tools? Solve problems?
Yes crows are smart, they can use tools to solve problems.
What is smarter an 18 month old pig, or a baby human (person)? Why?
The pig can do many things, but it doesn't talk or learn like a human.