Are there other animals as important as whales in the ocean?
From NCERTAsked by Anonymous from Dallas, United States23 Oct 2026, 3:34 PM ISTUpdated
In one line
Yes, many other ocean animals are as important as whales because each helps keep the ocean healthy in its own way.
Coral reef — Outcrop of rock in the sea formed by the growth and deposit of stony coral skeletons Coral reefs, built by tiny animals, are homes for many ocean creatures. Image: WikipediaPhytoplankton — Autotrophic members of the plankton ecosystem Phytoplankton, tiny plants in the ocean, make oxygen and feed many animals. Image: Wikipedia
The rule
Every animal in the ocean, big or small, plays a key role in the balance of ocean life.
Let's understand it simply
Imagine a cricket team. If only the captain plays well but the others do nothing, the team cannot win. In the ocean, whales are like the captain—very important, but the team (ocean) needs all its players (animals) to work together. Tiny creatures, big fish, and even plants all have jobs that keep the ocean running smoothly.
How it works
Whales eat small fish and plankton, and their waste helps tiny plants grow.
Sharks keep fish numbers in check by eating the weak or sick ones.
Coral (tiny animals) build reefs, which are homes for many sea creatures.
Phytoplankton (tiny plants) make oxygen and are food for many animals.
Sea turtles eat jellyfish and help keep beaches clean by laying eggs.
The story behind it
Scientists have studied the ocean for hundreds of years. They found that removing even one type of animal can upset the whole system. For example, when too many sharks are caught, the number of smaller fish grows too much, which can harm coral reefs.
Where you see it in real life
Sharks: Control fish populations → stop any one species from taking over.
Coral reefs: Built by tiny coral animals → provide shelter for fish, crabs, and more.
Phytoplankton: Float in water → produce most of the oxygen we breathe.
Sea otters: Eat sea urchins → protect kelp forests from being eaten up.
Dolphins: Hunt in groups → help keep fish schools healthy.
Crabs and snails: Clean up dead plants and animals → keep the ocean floor clean.
Why it matters
If one important animal disappears, the whole ocean system can get out of balance.
Many people depend on healthy oceans for food (like fish and prawns).
Ocean animals help control the air we breathe and the climate.
Learning about all these animals helps us protect the ocean better.
Common mistakes
Thinking only big animals like whales matter—small animals are just as important.
Forgetting that plants (like phytoplankton) are also living things that help the ocean.
Remember it
Every ocean animal, big or small, is like a player in a team—each one is needed for the ocean to stay healthy.
Check yourself
Why are sharks important in the ocean?
They control the number of other fish and keep the balance.
What do phytoplankton do that helps us on land?
They make oxygen that we breathe.
What might happen if coral reefs disappear?
Many sea animals would lose their homes, and the ocean would become less healthy.
Quick recap
Whales are important, but so are many other ocean animals.
Sharks, coral, phytoplankton, and turtles each have special roles.
Every animal helps keep the ocean balanced and healthy.
