Carrier Crab and Its Unique Defense Mechanism

The video explores the carrier crab, an animal that has adapted to protect itself by carrying objects on its back. Found in the waters of the Lembeh Strait and North Sulawesi, Indonesia, the crab uses its specially modified back legs to hold items like dead coral, seaweed, or shells as a defense mechanism. Interestingly, it sometimes uses living creatures, such as sea urchins, as shields. The crab cleverly utilizes the sea urchin's spines as a weapon when threatened and can also bury itself in the sand, leaving its shield exposed for protection.

Where is the carrier crab primarily found?

• Atlantic Ocean

• Lembeh Strait and North Sulawesi, Indonesia

• Caribbean Sea

• Mediterranean Sea

What unique feature do the carrier crab's back legs have?

• They are used for swimming

• They are used for digging

• They are specially modified to carry objects

• They are used for hunting

What types of objects does the carrier crab use for protection?

• Leaves and twigs

• Small fish and plankton

• Pieces of dead coral, seaweed, or broken shells

• Sand and pebbles

How does the carrier crab use a sea urchin?

• As a tool for digging

• As a food source

• As a weapon using its spines

• As a means of transportation

What does the carrier crab do if its defense mechanism fails?

• It changes its shell

• It hides in the sand

• It swims away quickly

• It releases ink