What are some interesting topics about biology?

[Listencarfully]

We're doing a research project in AP biology and I don't really want to do the typical cloning or genome or whatever.
Maybe something specific in psychology? I was thinking along the lines of dreams but someone already took that topic.
Please help
10 points to the one who gives me the topic I use ;D

 

[Kelvin]

reproduction

 

[Zach]

take the dream idea and bring it to a whole knew level, such as see if it is possible to create dreams of your choosing or maybe if dreams occur in animals.

 

[fatefellshort]

Uuhh
Stem cells?
Cancer?
Colour and light psychology?
The last one is more optics related, but you said you wanted to do something with psychology xD