You can think of it this way: a long time ago, there were huge dinosaurs like T-Rex. After a very long time, some dinosaurs changed and became birds, like chickens. So, chickens are like the little brothers and sisters of the T-Rex from way back in history! Isn't that fun?
So, instead of saying 'chickens and T-Rex dinosaurs are cousins,' you can say:
- Chickens and T-Rex are family from long ago.
- Chickens are distant relatives of T-Rex dinosaurs.
- Chickens come from the same family as T-Rex dinosaurs.