snakes N bats

[priyawarekar]

is it true that snakes have no ears if yes then how can they hear is ti through vibration.I'V heard that bats cant see but bats are nocturnal so if they cant see how can they survive and how many bats species are there? i know about fruit bats,insect bats and vampier bats

[Lindy Loo]

You are right about snakes not having external ears. Their hearing is restricted to the sensing of vibrations, but this sense is extremely well developed.

 

Bats are blind but 'see' by echo or a type of sonar.  Basically they emit a 'chirp', and listen to the echoes. They then build a 'picture' of the world around them from these echoes.