The polyp stage of their lives is usually more conspicuous ... tentacles of a jellyfish to nibble on scraps and avoid being eaten by bigger fish. Jellyfish change form significantly as they move ...

Polyp Stage: The sessile, asexual stage in the life cycle of jellyfish, typically attached to a substrate. Medusa Stage: The free-swimming, sexual stage of jellyfish, characterized by a bell ...

The adult immortal jellyfish is a solitary creature, spending most of its life drifting through the ocean. But during the polyp stage of its life cycle, polyp colonies may form on surfaces such as ...

Polyps can reproduce asexually ... serving as a foundation for individual jellyfish to later develop into their free-swimming, mature form known as the medusa. Essentially, when faced with ...

Museum curator Miranda Lowe explains, 'They have eggs and sperm and these get released to be fertilised, and then from that you get a free-swimming larval form ... mature into polyps, which will then ...

Anyone unfamiliar with the biology of the venomous Portuguese man-of-war would likely mistake it for a jellyfish ... man-of-war comprises four separate polyps. It gets its name from the uppermost ...

(CN) — Researchers at the California Institute of Technology are using jellyfish in their labs to make discoveries in the areas of biology, deep-sea dynamics and engineering. Jellyfish have roamed ...

This story appears in the October 2018 issue of National Geographic magazine. Moon jellies, which are found in shallow bays around the world, look like small, not entirely friendly ghosts.