Frog

Frog Epidermis Cell looks like a skin of cheetah; there are countless numbers of black dots on it.

Main Part

Image	Data	Description
	100x	When the black dots are focused closely, its shape is kind of spiky. Since there are some black dots that are not clear, the cell seems to be composed of two layers.
	200x	At the edge of the cell, the surface of the cell has different color than the background of the image.
	200x	Some black dots are similar to maple tree leaves. Interestingly,  at the right bottom, the circular shaped wholes are formed by two black dots.

White Holes

The spiky dots form circular white holes. These several white holes does not seem just  wholes; it seems to something going on there.

Image	Data	Description
	200x	When the condenser is lowered, it seems to increase the contrast. When the contrast is increased, there are circular lines inside the holes.
	400x	The circular white spaces look like bubbles that are about to be popped. In the negative space, there are other structures formed by lines.
	1000x	At 1000x magnification, even it is clear that there is something in the white hole.