Which animal’s sonar-inspired invention helps ships navigate oceans?

Which animal’s sonar-inspired invention helps ships navigate oceans?
a) Cat
b) Shark
c) Eagle
d) Dolphin

Correct Answer

d) Dolphin

Dolphins use a natural system called echolocation to navigate and find prey underwater.

They emit high-frequency sound waves that travel through water. When these sound waves hit an object, they bounce back as echoes. By analyzing these echoes, dolphins can determine:

• Distance

• Size

• Shape

• Movement of objects

Scientists studied this biological system and developed SONAR (Sound Navigation and Ranging) technology.

SONAR is used in:

• Ships to detect underwater objects

• Submarines

• Measuring ocean depth

• Detecting obstacles and enemy vessels

Other options:

• Cat → Uses hearing and vision

• Shark → Strong sense of smell

• Eagle → Excellent eyesight