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Hydra has a tubular, radially symmetric body up to 10 mm (0.39 in) long when extended, secured by a simple adhesive foot known as the basal disc. Gland cells in the basal disc secrete a sticky fluid that accounts for its adhesive properties.
Hydra viridissima is a species of cnidarian which is commonly found in still or slow-moving freshwater [2] in the Northern temperate zone. Hydra viridissima is commonly called green hydra due to its coloration, which is due to the symbiotic green algae Chlorella vulgaris which live within its body. [ 3 ]
The Hydra, a fictional deity created by Henry Kuttner. Mother Hydra, the co-ruler of the Deep One race in the Cthulhu Mythos; The Hydra, a fictional fighter jet in Grand Theft Auto: San Andreas and Grand Theft Auto Online; The Hydra, a fictional machine in Kirby Air Ride; Hydra, a boss enemy in the video game Prototype 2
Hydra oligactis. This species can reproduce in three ways: sexual reproduction, budding, and indirectly through regeneration. [11] When hydra reproduce sexually, simple testes, ovaries, or both will develop on the bodies of an individual. Sperm released into the environment by the testes enters the egg within the ovary.
Hydra rotates relatively quickly compared to the rest of Pluto's moons, which all have rotation periods greater than one day. [9] This rapid rotation of Hydra is common among the rotation periods of most Kuiper belt objects. [9] Hydra's surface material could get ejected due to centrifugal forces if it were rotating at a faster rate. [30] [32]
But beyond their sheer size and incredible speed, hippos also have sharp, 20-inch-long teeth. Their massive jaws can open up to 180 degrees, and they can bite down with a force three times greater ...
All hydra cells continually divide. [15] It has been suggested that hydras do not undergo senescence, and, as such, are biologically immortal. In a four-year study, 3 cohorts of hydra did not show an increase in mortality with age. It is possible that these animals live much longer, considering that they reach maturity in 5 to 10 days. [16]
The day ends with Typhon yet unchallenged, and while the other gods "moved about the cloudless Nile", Zeus waits through the night for the coming dawn. [88] Victory "reproaches" Zeus, urging him to "stand up as champion of your own children!" [89] Dawn comes and Typhon roars out a challenge to Zeus. [90]