Weird Places: Australia's Bright Pink Lake

Where is Lake Hillier located?

• Eastern Australia

• Middle Island, Western Australia

• Senegal

• South America

What type of organism is a leading candidate for giving Lake Hillier its pink color?

• Fish

• Salt-loving microalgae

• Pink flamingos

• Special minerals in the water

What are carotenoids, which are produced by the organisms in Lake Hillier?

• Types of fish

• Pigment compounds that absorb sunlight

• Tiny salt crystals

• Water-purifying bacteria

Halobacteria, another organism that might contribute to the pink color, belong to which domain of life?

• Bacteria

• Eukarya

• Archaea

• Fungi