Because the surface of the water table is not flat but instead rises and falls with topography, groundwater is affected by gravity in the same fashion as surface water.
For his research, Agassiz visited many places in the northern parts of Europe and North America, from the mountains of Scandinavia and New England to the rolling hills of the American Midwest.
It was noted that the video does not show the Zeta breathing, but their breathing does not cause a heaving chest because their lungs work asynchronously, one breathing in while the other exhales.
It was a day compounded from silences of bee and flower and ocean and land, which were not silence at all, but motions, stirs, flutters, risings, fallings, each in its own time and matchless rhythm.