He defines asexuality as a complete lack of sexual attraction .
他将“无性恋”定义为完全感受不到性吸引力。
Asexuality is a fast growing sexual preference .
无性恋是一种正在快速增涨的性倾向。
They have found a species of crayfish that follows the logic of asexuality and does , indeed , clone itself .
他们发现了一种龙虾符合无性繁殖的理论，这些龙虾的确在克隆自身。
His book to be published next month , understanding asexuality , analyses asexuality further , arguing that greater numbers of people now consider themselves ' asexual ' .
" There are almost certainly systems where strict asexuality arises , and the lineages go extinct over evolutionary time thousands or tens of thousands of years , " says david hillis of the university of texas at austin .
