| Sharks have the same five senses as people - they can see, hear, smell, taste, and touch. There is also a sixth sense which allows sharks to detect weak, electrical signals generated by their prey. This Electro-sense may also help them to navigate on their journeys in the sea. This underwater world is quite different to our own. Light levels decrease with depth and colours fade to blues. Sound travels five times faster and farther. Odours are dissolved in water, not wafted in the air. Sharks can detect vibrations made by animals moving through the water, giving them the sense called "distant-touch". It is hard to find out exactly how a shark perceives its world, but studies on their behaviour and how sense organs work give some idea about what it is like to be a shark. |
