mammalian cytogenetics

例句：

1. 1. Mammals are the only animals that give birth to live young.
   哺乳动物是唯一能产活仔的动物。
2. 2.The mammalian genome is a complex network of DNA molecules.
   哺乳动物基因组是一个复杂的DNA分子网络。
3. 3. Mammals have evolved to be warm-blooded and require a constant supply of food.
   哺乳动物已经进化成恒温动物，需要不断的食物供应。