pachycephalia

例句：

1. 1. The pachycephalian was the first animal to have a long, curved horn on its head.
   长角兽是第一种头上有长弯角的动物。
2. 2. Pachycephalic cats are known for their distinctive facial features and long, bushy tails.
   长角猫以其独特的面部特征和长而浓密的尾巴而闻名。
3. 3. In some species of mammals, the pachycephalic condition can be associated with genetic mutations.
   在某些哺乳动物中，长角状畸形与基因突变有关。