What is this close-up picture? (WotsThat: Pond water surface tension)

Question

What object is shown in this zoomed-in close-up photo?

TungstenWolf · Accepted Answer

Pond water surface tension. Water striders can literally walk on pond water because surface tension creates a "skin" strong enough to support their weight—but here's the wild part: if you add even a tiny drop of dish soap to the water, they instantly sink like stones because the soap breaks the surface tension in seconds.

Answer: Pond water surface tension

More environment close-ups