Five Facts - Fish

The video presents five fascinating facts about fish. It discusses the vast number of undiscovered fish species in the deep ocean, highlighting their unique adaptations like bioluminescence. The swim bladder's role in helping fish float is explained, contrasting with sharks that must swim constantly. Fish sleep patterns are explored, noting their lack of eyelids. The video also covers fish that can live in both freshwater and saltwater, such as salmon. Finally, it describes the lungfish's ability to breathe air due to its unique adaptation to dry climates.

What is one reason why many fish species remain undiscovered in the ocean?

• The ocean is too shallow.

• Fish are too small to be seen.

• The ocean is too deep for humans to explore fully.

• Fish hide from researchers.

How do fish use their swim bladder?

• To catch prey.

• To communicate with other fish.

• To help them float without swimming.

• To see in the dark.

Why do sharks need to keep swimming?

• To avoid predators.

• To stay afloat since they lack a swim bladder.

• To find food.

• To keep warm.

Which fish is known for living in both freshwater and saltwater during its life cycle?

• Salmon

• Largemouth bass

• Clownfish

• Lungfish

What unique ability does the Australian lungfish have?

• It can fly.

• It can breathe air and water.

• It can change colors.

• It can live without water.