Close up of a snail shell on a ruler next to a piece of paper with…

Bee on a white surface with two papers attached to it

Two shells

Wooden box with a clock inside of it

Small seashell sitting on top of a table next to a ruler

Gold nugget on a black background

Box containing two clams on top of a table

Black and white microscopic view of a gastrula

X-ray of a fish on a black background with a white paper attached to it