Translation of "Cousins" in Chinese

I have three cousins.

我有三个堂兄。

He and I are cousins.

他和我是堂（表）兄弟关系。

Mary and Jane are cousins.

玛丽和珍是表姐妹。

Ants and giraffes are distant cousins.

蚂蚁和长颈鹿是远亲。

- Ants and giraffes are distant cousins.
- Ants and giraffes are distant relatives.

蚂蚁和长颈鹿是远亲。