Ocean depth is divided into zones: littoral, bathyal, abyssal and hadal. The deepest part of the ocean, the hadal zone, is anywhere deeper than six kilometres. What is the average depth of the ocean?

Density in particular is an important property in ocean science because small spatial changes in density result in spatial variations in pressure at a given depth, which in turn drive the ocean ...

So deep that picturing the ocean’s depth in your mind’s eye is somewhat tricky, which is why one YouTuber made an animation to showcase it. The animation was shared on YouTube over a year ago ...