Details: This poster shows a blue-green colored jellyfish.
Jellyfish (also known as jellies or sea jellies) are free-swimming members of the phylum Cnidaria. Medusa (plural medusae) is another word for jellyfish. Jellyfish are found in every ocean, from the surface to the deep sea. Some hydrozoan jellyfish, or hydromedusae, are also found in fresh water. Their presence in the ocean is usually seasonal, responding to the availability of prey, which is seasonal in most places, increasing with temperature and sunshine in the spring and summer. Ocean currents tend to congregate jellyfish into large swarms or blooms , consisting of hundreds or thousands of individuals. When stung by a jellyfish, first aid may be needed immediately.
This poster is usually printed with a thin white edge border.