article_snippet: Professor Jacobs said for the whale to end up where the whale did, the whale must have swam far inland up the ancient Anza River with a low gradient ranging from 78 feet (24m) to 121 feet (37m) over 372 miles (600km) to 559 miles (900km).
article_snippet: Once the whale began swimming up the ancient Anza River the whale could not change the whale course.
article_snippet: There are some modern examples of whales making similar mistakes such as the sperm whale that swam up the Thames towards London, and other whales what have become stranded in the Sacramento River in California and the Amazon in Brazil.
article_snippet: Professor Jacobs said: 'You don't usually find whales so far inland.
highlights_snippet: The marine mammal's remains is thought to have swam up the ancient Anza river after taking wrong turn .
  