both in or in both/ on or in

[Dawood Usmani]

Hi dear teachers!
Which one is correct?
1. These are some of the animals that live in both water and on land.
2. These are some of the animals that live both in water and on land.
3. These are some of the animals that live in both water and land.
4. These are some of the animals that live both in water and land.( without on added)
Best regards!
Dawood

[David L.]

2. These are some of the animals that live both in water and on land.