They both use Sonar to navigate and guide where they are going. Sonar uses sound waves that bounce off of objects and are reflected back at the animal. Submarines also use Sonar.
Neither of those species is capable of language.
It means that you speak in the same language
The same language I speak in any location.
dolphins, rats, bats.
You speak the same language you spoke at the beginning of World War I.
I think it's because Dolphins speak (squeaks, singing, whatever you want to call it) out and it will rebound off of other animals/dolpins to see how close they are or how close the enemy is, whatever it wants to know. And this is the same with a bat - it uses its sonar to reflect off of the other bats or animals. This is called echolocation.
For the same reason you speak English. That's their language. (However English is not your native language, I think)
Each person would speak the same language. Same can be said about any language.
Not necessarily. A language family can have dozens of different languages in it.
There are numerous religious groups that may speak the same language, as language and religion are not necessarily correlated. The number of different religious groups speaking the same language will vary depending on the specific language and region in question.
it's the same way as any other language. How people speak English or Spanish or any other language..?
they do not speak the same because they are different tribes
Yes, both countries speak English as their main language.