As of November 2026, there are more than 500 kinds of sharks. Some are tiny. Some are huge. They come in many sizes.

The dwarf lanternshark is one of the smallest. As of November 2026, it is full size at under 8 inches.

As of November 2026, the deep-water pygmy shark is small too. It is about 8 inches long.

A white shark pup is about 4 feet long when it is born.

A great white gets much bigger than the pygmy. As of November 2026, it can grow to about 20 feet long.

Which fish is the biggest fish in the whole sea? As of November 2026, it is a shark! It is the whale shark.

Whale sharks are very big. As of November 2026, they are usually about 18 to 32 feet long.

The whale shark is huge, but its food is tiny. It eats very small sea animals. These tiny animals are called plankton.

Not every big one eats tiny food. A great white eats bigger food. Grown-up great whites mostly hunt seals and sea lions.

Tiny or huge, they are all fish. They all breathe under water. They breathe with gills.

Words to know

• plankton: tiny sea animals
• gills: fish breathing parts
• huge: very big