From the wild animal to the human

The topic I originally planned to do was about how to identify the different ages of turtles by the different sounds of their movements. But after I looked for places in London or the UK that breed turtles, I found that this idea was a bit difficult to put into practice, especially finding and collecting turtles of different ages.

Then after I thought about it,

• I thought that humans are also a kind of animal?

Can I analyze the relationship with people of different ages through the sounds produced by a certain behavior in our daily lives

• Walking!

We walk every day, we all walk, and we all walk. Then I thought about whether it is possible to identify the age of people of different ages by recording the sounds of them going up and down the stairs, and to analyze the reasons for this result.