cataphoretic migration speed

例句：

1. 1. The migration of birds is afascinating process that requires careful observation.
   鸟类的迁徙是一个引人入胜的过程，需要仔细观察。
2. 2. The study of migration patterns helps usunderstand the natural world better.
   研究迁徙模式有助于我们更好地理解自然界。
3. 3. The speedof migration can vary greatlydepending on the species and theconditions they face.
   迁移速度可以根据物种和它们面临的条件而有很大差异。