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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 ...
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.
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 ...
Cannonball jellyfish. The cannonball jellyfish (Stomolophus meleagris), also known as the cabbagehead jellyfish, is a species of jellyfish in the family Stomolophidae. Its common name derives from its similarity to a cannonball in shape and size. Its dome-shaped bell can reach 25 cm (10 in) in diameter. The rim is often colored with brown pigment.
Homosexual behavior in animals. Two male mallards (Anas platyrhynchos) Various non-human animal species exhibit behavior that can be interpreted as homosexual or bisexual, often referred to as same-sex sexual behavior (SSSB) by scientists. This may include same-sex sexual activity, courtship, affection, pair bonding, and parenting among same ...
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 ...
Fish. Arctic grayling (Thymallus arcticus) leaping for a fly fisherman's bait. Research going back to the 1950s has shown both male and female graylings exhibit homosexual behavior. [53] Amazon molly [54] Anglerfish [citation needed] Blackstripe topminnow [55] Bluegill sunfish [55] Char [53]
Jellyfish Dr. Jaimie Tom, an emergency physician at Hawaii Pacific Health , tells Yahoo Life that jellyfish stings are at the top of the list when it comes to marine animal encounters that land ...