What's Smaller Than a Pygmy Shrew?

A pygmy shrew is small; it's among the smallest of mammals. What could be smaller? Well, a ladybug--a pygmy shrew would look like a mammoth to a ladybug's eyes. But then, that same ladybug would look gigantic next to protozoa.Robert E. Wells, author of Is a Blue Whale the Biggest Thing There Is? now invites you to explore the large world of the very small.