Floating icebergs make crackling and popping sounds. I learned that each layer of an iceberg represents one year of packed ice. There are many other natural phenomena and fascinating wildlife in both polar regions. It was time to travel south to Antarctica, hoping to see some more of it! 18
NATURAL PHENOMENA Bioluminescence on the sea’s surface. Solar halos are called sun dogs. Total eclipse of the sun. Salty ice frost flowers form in the sea. 19
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