they use SONAR. :)
Dolphins hear with their ears BUT when it comes to their sonar they 'hear' with their jaw.
yes
they hear noises
As dolphins are mammals they breath air like us, humans.
dolphins are mammals, not fish. They have lungs, not gills, and breathe air.
no
Dolphins must go to the surface, because they breathe air. Dolphins are mammals, not fish.
Dolphins are mammals, they Breathe air. If trapped underwater they eventually suffocate or drown.
dolphins hate getting bitten by sharks
A few dolphins can be found at the Underwater World in Sentosa. The future Integrated Resort (IR) at Sentosa will also have dolphins.
dolpins hear through an echo
they can breathe and survive underwater.