If evolutionary relatedness does not determine sleep time, then what does? 所以，如果動物之間的演化關聯性不是決定睡眠時間的因素，那會是什麼？
We found technological complexity is the most important factor to gain profit.When selecting product items, product relatedness is also a very important concern. 研究發現技術復雜度是決定獲利的最重要因素，在選擇產品開發項目時，產品關聯性亦是一個重要的考量。