The Great Red Crab Migration

What is the primary reason the red crabs on Christmas Island begin their migration?

• To find food

• To escape predators

• To mate and lay eggs

• To find new habitats

During which season does the red crab migration on Christmas Island typically begin?

• Dry season

• Winter season

• Rainy season

• Summer season

What role do local volunteers and environmentalists play during the red crab migration?

• They capture the crabs for research.

• They set up barriers and direct traffic to protect the crabs.

• They feed the crabs during their journey.

• They relocate the crabs to a safer area.

How do the red crabs know when to start their migration?

• They follow the stars.

• They sense changes in humidity and temperature.

• They listen for the sound of the ocean.

• They wait for a signal from other animals.

What happens to the red crab eggs after they are laid in the ocean?

• They are immediately eaten by predators.

• They hatch into tiny larvae and drift in the ocean currents.

• They remain on the beach until they hatch.

• They are buried in the sand by the female crabs.

Why is the red crab migration important to the rainforest ecosystem on Christmas Island?

• The crabs help to aerate the soil as they dig and burrow.

• The crabs provide shade for the plants.

• The crabs clean the forest floor.

• The crabs pollinate the flowers.

What is one of the challenges the red crabs face during their migration?

• Lack of food

• Crossing roads and tricky terrains

• Predators in the ocean

• Extreme cold temperatures

What is the significance of the red crabs in the food chain?

• They are the top predators.

• They serve as a food source for various animals, including birds and fish.

• They are not part of the food chain.

• They only eat plants and do not interact with other animals.

What is a visual spectacle that occurs when the red crabs reach the beach?

• The crabs change color.

• Thousands of bright red shells dot the sandy shore.

• The crabs form a circle and dance.

• The crabs build sandcastles.

What broader message does the red crab migration convey about nature?

• It shows the simplicity of natural events.

• It highlights the importance of human intervention in nature.

• It reminds us of the beauty and complexity of nature and the importance of conservation.

• It demonstrates the dominance of crabs over other species.