Pairing and complementarity in nature

سُبْحَـٰنَ ٱلَّذِى خَلَقَ ٱلْأَزْوَٰجَ كُلَّهَا مِمَّا تُنۢبِتُ ٱلْأَرْضُ وَمِنْ أَنفُسِهِمْ وَمِمَّا لَا يَعْلَمُونَ

Exalted is He who created all pairs - from what the earth grows and from themselves and from that which they do not know.

وَمِن كُلِّ شَىْءٍ خَلَقْنَا زَوْجَيْنِ لَعَلَّكُمْ تَذَكَّرُونَ

And of all things We created two mates [i.e., counterparts]; perhaps you will remember.