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hydrozoa
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Hydrozoa are related to jellyfish and corals, and have both polyp and medusa stages in their life cycles. They inhabit saline or freshwater habitats, and include species such as Hydra, Portuguese man o' war, and Tubularia.
Hydrozoa are cnidarians with complex life cycles, growth forms, and specialized structures. They are mostly marine, but some are freshwater, and have a variety of habitats, functions, and interactions.
A comprehensive online resource for hydrozoan taxonomy, morphology, distribution and classification. Find information on about 3,800 species of hydrozoans, including freshwater and marine forms, and their synonyms, orders and suborders.
Hydrozoa are cnidarians that include Hydra, jellyfish and fire corals. Learn about their life cycle, colonial forms and diversity with links to more resources.
Explore hydrozoans, a diverse class of aquatic animals defined by their ability to shift between forms and their complex reproductive strategies.
Hydrozoa (phylum Coelenterata, class Hydrozoa) are coelenterates that are closely related to the hydra, sea anemones, corals, and jellyfish. Although a large majority of these species are common and widespread, they are often overlooked, as they are all small animals. The vast majority are marine species, but several freshwater hydrozoans have also been identified, for example, Cordylophora ...
Hydrozoa are small predatory animals which mostly live in the sea. They have a polyp life form and can be colonial or solitary. Learn about their examples, classification and evolution.
Hydrozoa(hydrozoans; from Ancient Greek ὕδωρ(húdōr)'water', and ζῷον(zôion)'animal') is a taxonomic class of individually very small, predatory animals, some solitary and some colonial, most of which inhabit saline water. The colonies of the colonial species can be large, and in some cases the specialized individual animals cannot survive outside the colony. A few genera within ...
Hydrozoa are coelenterates that include sea anemones, corals, and jellyfish. They have two main body forms: a sessile polyp with tentacles and a mouth, and a free-swimming medusa with a bell-like shape. Learn more about their features, classification, and examples.
Hydrozoans are small, predatory animals, some solitary and some colonial, related to jellyfish and corals. Learn about their taxonomy, interactions, conservation status, and how to identify them on iNaturalist.