Extinct animals size

[Catherine]

Quote:The Steller's sea cow survived the Ice Age but it was hunted down to extinction in just 27 years after the Europeans first discovered them in the 18th century. The population was quickly wiped out by sailors, seal hunters as well as fur traders.

This is tragic. It is another terrible loss that we have caused. It must have been incredible to see them swimming. We are so short sighted that all we can see is a way to make money from an animal. We can't see the incredible beauty of having them alive in our world.

I cannot picture a 54 foot fish. That would be big enough to swallow a human whole. 
The ancient oceans must have been wild places to live.