What are some of the most mind-blowing facts?

 The Reproduction & lifestyle of Blue Whale is really a mind blowing event that we could pretend to understand.

• Mass of a sperm cell is about one trillionth of a gram. That means a negligible stuff by mass contain enough information about how to build the biggest creature on planet of about mega grams (${10}^6$) !
• A typical ejaculation is of about 18 litre or 40 pints, for this they have planet’s longest penis of about 8- 10 feet! 
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• Baby calf born grows at a whooping rate of 90 kg per day, with an intake of 600 litres of milk per day!
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• Whales do not sleep like the way humans and other animals do, however they do rest. Because they must remain conscious of their need for oxygen as they live in the ocean taking care of their huge size.
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• Most injuries & deaths are recorded not from their predators, but the impact and collisions from large ships. They are usually mistaken as an island! 
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