Nudibranchs are gastropod mollusks, like mussels, clams and scallops, but as adults they have no shell, so their soft body ...

How many species of jellyfish are there? Jellyfish are sometimes called sea jellies. They belong to a group called Medusozoa which is divided into four classes: Hydrozoa, Scyphozoa, Cubozoa and ...

Most jellyfish are more bothersome than threatening, which is probably why no one would tune into "Jellyfish Week." Also known as sea wasps and ... that helps the creature catch and digest its ...

Scientists chose to study a jellyfish species that is 'representative' of many creatures that live in deep water An experiment to test how seabed mining could affect deep sea life has revealed ...

The creature, called Portuguese man o’ war, resembles a jellyfish but is actually a siphonophore, an animal made up of a colony of organisms that work together. They are colorful and even ...