Response #15: Video – “Planet Earth: Caves & Ice Worlds”

Our world is filled with interesting and remarkable places that are hidden beneath the earth’s surface and where the weather is unsuitable for humans.  I had the opportunity to watch the BBC series “Planet Earth Vol. 2: Caves/Deserts/Ice Worlds” and I was pretty intrigued by what I seen.  Although I only watched caves and ice worlds, I was fascinated by the previously unknown facts and information that I learned through these episodes.  I think everyone should take their time to watch them.
Caves are the least explored places on earth and they contain the strangest and unknown animals.  They are made out of limestone and lie beneath mountains of limestone.   When the mountains were first formed, it was underwater but now they stand tall above sea levels.  The caves are created from constant falling rain.  When heavy rain falls it breaks down the limestone, creating holes (caves) in the mountains and it can also expand a caves size.  Sifflers are birds that reside in caves.  They make their nest along the walls of the cave out of their own saliva.  Humans risk their lives gathering these nests because they are the main ingredient for bird’s nest soup.  The most beautiful of caves resides in the United States because it is lined with crystals.
The ice world is the largest and demanding wilderness and is known for their extreme seasons.  Antarctica holds 90% of the worlds ice.  Many animals roam here such as various species of penguins, seals, whales, birds, and polar bears.  Many of them travel long distances just to harvest food.  But because winter is getting shorter and summers are longer, the ice land decreases, forcing many of these animals to starve to death.

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