"Slow" marine animals show their secret life under high magnification. Corals and sponges are very mobile creatures, but their motion is only detectable at different time scales compared to ours and requires time lapses to be seen. These animals build.
Another fast shutter speed. For her series "Shake", pet photographer Carli Davidson photographed curious portraits of dogs shaking off water. Use a fast shutter speed and you can capture all kinds of strange expression.