Man o' War all-time greats with an "almost unbelievably brilliant performance" before a crowd of 25,000. At odds of 1-20, he faced only one rival, the well-regarded colt Donnaconna. Man o' War led from the start and Kummer let him run freely at the top of the stretch, allowing Man o' War to draw away by 20 lengths. Although eased in the final furlong, Man o' War set a world record of 2:14, beating the previous standard set in England by over two seconds and beating Sir Barton's American record by over three seconds. This time stood as the American record until 1961
Sea slug are within the informal taxonomic group Opisthobranchia: There is also one group of "sea slugs" within the informal group Pulmonata: Like many nudibranchs, "Glaucus atlanticus" can store and use stinging cells from its prey (Portuguese man o' war) in its finger-like cerata. Other species like the Pyjama slug "Chromodoris quadricolor" may use their striking colors to advertise their foul chemical taste. The Lettuce Sea Slug ("Elysia crispata") has lettuce-like ruffles that line its body. This slug, like other Sacoglossa uses kleptoplasty, a process in which the slug absorbs chloroplasts from the algae it eats, and uses "stolen" cells to photosynthesize