Complex Localized facts

While investigating facts about Complex Localized Pain Syndrome and , I found out little known, but curios details like:

When a whale dies in colder waters, its body sinks to the ocean floor creating a complex localized ecosystem for years called a whale fall.

how many countries are completely surrounded by another country?

When a whale dies and its carcass falls into the Bathyal or Abyssal zone of the ocean floor, it can sustain a complex localized ecosystem of deep-sea organisms for decades. This is called a "whale fall".

What animal is completely useless?

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what to do when you feel completely useless. Here are 2 of the best facts about Complex Localized I managed to collect.

what is something completely useless?