My Amazing Trip to Dolphin Wonderland

Today, I went for an adventure at Dolphin Wonderland and had some amazing discoveries. Dolphins are really magical creatures! Do you know that they have bad eyesight? So how do they know what is around them? Let me tell you.

The smart me found out that dolphins have a nasal sac which they use to send out rapid clicks that passes through their melon, also known as their forehead. Interesting right? Indeed! The dolphin’s nasal sacs vibrates, causing it’s melon to also vibrate, and thereafter influencing surrounding water molecules to vibrate. As the water molecules vibrate, kinetic energy is transferred to neighbouring water molecules. This continuous process provides an extensive medium for the sound waves emitted from the dolphin to reach surrounding objects. The vibration of water molecules causes the rapid clicks (sound waves) to travel through the water in the form of a compression wave. The sound waves bounce off the surrounding objects and are reflected back to the dolphin, allowing it to perceive the size and distance of an object from it. Cool right?

My wife is calling me now. I have to go. Stay tuned!

Nasal sac refers to the air sacs below the blowhole.
http://www.emeraldinsight.com/content_images/fig/0870330101004.png

P.S.The water does not move from the dolphin to the object. The water molecules are only temporarily displaced from their rest position. After which those particles in the medium will return to their fixed positions. It is the sound waves that transfer energy through the medium, from the dolphin to the object.

Enjoy this picture of a derp dolphin.
http://s3-ec.buzzfed.com/static/enhanced/webdr03/2013/2/22/12/anigif_enhanced-buzz-21852-1361553389-10.gif