The unifying features are the saltwater itself and the fact that the variations are controlled by universal chemical, physical and biological laws.

They wound between the wagons to a tent removed from the rest of the traders'. It was crimson at the top and sable at the bottom, with thin triangles of colors stabbing into each other.

Several days passed away, and at length down came an order for [Harry] Bartlett to go on shore and take up his warrant for a sloop of war that was then round at Plymouth, to which place he was to make all haste to join. […] Well, my man, said Sir Joseph [Sydney Yorke], in his usual deliberative manner, and so it has pleased the powers aloft to reward your deserts, and you are now a warrant officer.

The Cognitive function in Humans results from our extremely complex kinematic capabilities. Grasping for objects, bending down and up, or sitting down on objects are examples of kinematic capabilities[…]