The hair follicle melanin is synthesized by menalocyte which can be divided into three steps of melanic synthesis , diversion and thawing , each disorder of which will hinder the melanic metabolism .

毛发黑素由毛囊黑素细胞合成，其合成代谢可分为黑素生成、转移和融化三个阶段，任何一个环节出现障碍均会影响黑素代谢，从而导致毛发颜色变化。

Mr Allen and his colleagues made one other observation . Some species of cat regularly produce melanic forms & the so-called black panther ( actually a melanic jaguar ) being the most familiar .

艾伦先生及其同事还有另一个观察结果。某些猫类物种通常长着的暗色花纹&就是所谓的黑豹（其实是黑色美洲虎）是相似度最高的。

In 2004 , the last year in which the researchers could gather enough ladybugs to see a significant trend , they found that only 20 % of the ladybugs in any area were melanic .

在2004年，研究人员搜集到了足够的瓢虫得到一个明显的趋势。他们发现来自任何地方的瓢虫仅20%是黑色的。

The research presents that the melanic mudstones are not very thick and organic carbon index is low in this member , but the type of organic matter is good with the features of high hydrocarbon generation potential and early hydrocarbon generation time .

研究表明，该段暗色泥岩虽然厚度不大，有机碳指标较低，但有机质类型较好，具有生烃潜力高、生烃时间早的特征。