Surprising Science films
Natural History Museum
The illustrations and graphics below were all created for Surprising Science, the Museum's film series on YouTube.
The females grow to around 6 feet long and the males to just one inch. The females have this webbing that resembles a blanket, which they can open to make themselves look threatening to predators. The males are immune to the Portuguese man o' war and when attacked, they break off some of its tentacles to defend against other prey.