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Turritopsis dohrnii, also known as the immortal jellyfish, is a species of small, biologically immortal jellyfish [2] [3] found worldwide in temperate to tropic waters. It is one of the few known cases of animals capable of reverting completely to a sexually immature, colonial stage after having reached sexual maturity as a solitary individual.
Jellyfish, also known as sea jellies, are the medusa -phase of certain gelatinous members of the subphylum Medusozoa, which is a major part of the phylum Cnidaria. Jellyfish are mainly free-swimming marine animals, although a few are anchored to the seabed by stalks rather than being motile. They are made of an umbrella-shaped main body made of ...
Some authors posit the behaviours are a result of any bird demonstrably homosexual being less inclined to rear young, [40] while other authors posit the timing of emergence from the egg is a factor. [42] In 1977, The New York Times also reported on a colony of lesbian seagulls "off [the] coast of California." [43] Selected birds from the full list
The Scyphozoa are an exclusively marine class of the phylum Cnidaria, [2] referred to as the true jellyfish (or "true jellies"). The class name Scyphozoa comes from the Greek word skyphos (σκύφος), denoting a kind of drinking cup and alluding to the cup shape of the organism. [3] Scyphozoans have existed from the earliest Cambrian to the ...
Giraffes in Kenya; giraffes have been called "especially gay " for engaging in male-male sexual behavior more often than male-female (heterosexual) sex. [1][2] This is a list of mammals for which there is documented evidence of homosexual behavior. These animals have been observed practicing homosexual courtship, sexual behavior, affection ...
Aequorea victoria. Aequorea victoria, also sometimes called the crystal jelly, is a bioluminescent hydrozoan jellyfish, or hydromedusa, that is found off the west coast of North America. The species is best known as the source of aequorin (a photoprotein), and green fluorescent protein (GFP); two proteins involved in bioluminescence.
Chrysaora fuscescens, the Pacific sea nettle or West Coast sea nettle, is a widespread planktonic scyphozoan cnidarian —or medusa, "jellyfish" or "jelly"—that lives in the northeastern Pacific Ocean, in temperate to cooler waters off of British Columbia and the West Coast of the United States, ranging south to México.
A specimen in a farming pond (Upstate New York). Craspedacusta sowerbii or peach blossom jellyfish[1] is a species of freshwater hydrozoan jellyfish, or hydromedusa cnidarian. Hydromedusan jellyfish differ from scyphozoan jellyfish because they have a muscular, shelf-like structure called a velum on the ventral surface, attached to the bell margin.