Describe what is happening in figures 1-3

There are less white mice in the third box because the bird has already been there. But it is harder for it to see the dark mouse so they are safer and more of them are left. In the second box the bird is holding a white mouse. But the first and second boxes have about the same numbers of mice because the bird already has one

Explanation:

this protocol provides a detailed procedure for agarose-based ip to purify and enrich the protein of interest.

i need an image of the diagram