King Solomon possessed a boundless intellect that extended far beyond human affairs, encompassing the entirety of the natural world. His profound grasp of creation not only fueled his poetry and proverbs but also formed the foundation of comprehensive scientific works [מלבי״ם, ביאור שטיינזלץ]. The primary approach among commentators is that he deeply investigated botany and zoology, exploring the elemental makeup, underlying causes, and essential characteristics of all plant and animal life [מצודת דוד, רלב״ג].
This mastery was highly practical. Solomon understood the specific medicinal benefits of every plant and creature. He knew exactly which timber was suited for particular structures, the ideal soil for planting any given tree, and the precise dietary and breeding habits of various animals [רש״י, רלב״ג]. He analyzed the natural world by observing its strict hierarchy, organizing life from the most complex and majestic down to the simplest forms. In the plant kingdom, his knowledge spanned from towering trees down to the most basic grasses that sprout from stone walls [מצודת ציון, מלבי״ם]. Similarly, he classified the animal kingdom based on biological development and reproductive methods, tracking life from mammals that give birth to live young, through birds, down to fish, amphibians, and the low, short-legged creatures that swarm the earth [רלב״ג, מצודת ציון, מלבי״ם].
Beyond this scientific approach, another perspective suggests that Solomon revealed the deep spiritual and legal reasoning behind the Torah's commandments regarding nature [רש״י, רד״ק]. For instance, he explained the symbolism in the purification process of a person afflicted with leprosy, which requires both the tallest tree and the lowest shrub. He taught that a person struck with this affliction had grown dangerously proud like a towering cedar, and could only find healing by humbling himself like a lowly bush.
He also clarified the reasoning behind various dietary and ritual laws concerning animals. He explained why mammals require a more complex method of ritual slaughter than birds, noting that birds were formed from mud—a transitional state between water and dry land—while fish and grasshoppers require no ritual slaughter at all, only gathering. Furthermore, he detailed why the Torah singles out eight specific creeping creatures with strict rules against hunting or wounding them, explaining that unlike other swarming animals, these eight possess genuine skin [רד״ק]. Finally, taking an allegorical approach, some suggest that Solomon's extensive discussions about trees were not merely botanical observations, but rather symbolic prophecies foretelling the future destiny of the kings of the House of David [רד״ק].