Average 100 pounds. The largest is about 175 pounds. They are about two feet tall and four feet long. Some books give a smaller weight for the largest capybara, about 140 pounds. I have one source that I consider reliable that says 175, and whats more, I work with someone who met a 175 pound capybara. However, this is not common. There were prehistoric capybaras, now extinct, that weighed about eight times as much.
Twain's first book, The Innocents Abroad, was published in 1869, The Adventures of Tom Sawyer in 1876, and The Adventures of Huckleberry Finn in 1885. He wrote 28 books and numerous short stories, letters and sketches. Mark Twain passed away on April 21, 1910, but has a following still today.
Where did the name Mark Twain come from? When he started writing, Samuel took on the pen name Mark Twain. The name comes from a term used on steamboats to signal that the water was 12 feet deep. Famous Books Mark Twain wrote a number of books. Some told funny stories from his own travels such as Roughing It and Innocents Abroad.