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Grévy's zebra is the largest. It is about 4.10 to 5.25 feet at shoulder height and weighs 776 to 992 pounds. The mountain zebra is slightly smaller, and is about 3.81 to 4.79 feet at shoulder.
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The plains zebra (Equus quagga, formerly Equus burchellii), is the most common and geographically widespread species of zebra.Its range is fragmented, but spans much of southern and eastern Africa south of the Sahara.Six or seven subspecies have been recognised, including the extinct quagga which was thought to be a separate species. More recent research supports variations in zebra.
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The life span of D. polymorpha ranges between 3-9 years. Maximum growth rates can reach 0.5 mm/day and 1.5-2.0 cm/year. Adults are sexually mature at 8-9 mm in shell length (i.e. within one year in favorable growing conditions). Zebra mussels are filter feeders having both inhalant and exhalant siphons.
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Zebra mussels live for 2 to 5 years on average. By 2 years of age, they can reproduce. To do this, the female releases eggs into the water where the male releases sperm. One female can release up to 1 million eggs per year. A male can release up to 200 million sperm. After fertilization, an average of 500,000 eggs per meter hatch release larvae.
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GENERE PROMISCUO . I cosiddetti nomi di genere promiscuo (detti anche, insieme ai nomi di genere comune, o epicèni) sono nomi di animali che hanno un'unica forma, maschile o femminile, per indicare sia l'esemplare maschio, sia l'esemplare femmina . l'aquila il colibrì il delfino il leopardo la tigre l'usignolo la zebra Per precisare il sesso di questi animali si può usare l.
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ethiopian native Habitat Burchell's zebras roam the open savannas of southeastern Africa. They prefer open grasslands, open woodlands, and open scrub environments. Occasionally, they may also inhabit taller grasslands, heavier woodland areas, and even hilly country and mountainous regions up to 4,400 meters in elevation.
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An exclusively hormonal theory of brain sexual differentiation has been challenged by studies of zebra finches ( Taeniopygia guttata ). Males, but not females, sing a courtship song. The male's neural song nuclei are much larger and have larger neurons ( 5 ).
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Zebras ( US: / ˈziːbrəz /, UK: / ˈzɛbrəz, ˈziː -/) [1] (subgenus Hippotigris) are African equines with distinctive black-and-white striped coats. There are three living species: Grévy's zebra ( Equus grevyi ), the plains zebra ( E. quagga ), and the mountain zebra ( E. zebra ).
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al, 1989) than those colonized by mussels in N.A. Their suspected origin from just north of the Ukrainian Black Sea in the warmest portion of D. polymorpha's Euro pean range (Spidle et al, 1994; Marsden et al, 1996), suggests that N.A. mussels may be adapted to warmer environments. In order to provide a foundation for fur
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Zebras can cross breed with other members of equus: A plains zebra crossed with a donkey is known as a "zebdonk," zonkey, zebrass, and zorse. The plains or Burchell's zebra has several subspecies: Grant's zebra (Equus quagga boehmi) and Chapman's zebra (Equus quagga antiquorum).And the now-extinct quagga, once thought to be a separate species, is now considered a subspecies of the plains zebra.
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The zebra mussel, Dreissena polymorpha, continues to spread from its native range in Eurasia to Europe and North America, causing billions of dollars in damage and dramatically altering invaded aquatic ecosystems. Despite these impacts, there are few genomic resources for Dreissena or related bivalves.
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Distribution Burchell's zebra is distributed from East Africa going down to the northern and eastern regions of southern Africa. In South Africa they are widely distributed in Mpumalanga (Kruger National Park) down to KwaZulu-Natal and in the Western Cape. They also occur in the Free State. Habitat
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La zebra è un mammifero perissodattilo erbivoro, appartenente, come il cavallo, alla famiglia degli Equidi. Di conseguenza, come è fatta la zebra? Le zebre sono animali dal mantello rigato, costituito da bande chiare e scure alternate, il cui numero, direzione e disposizione varia da una specie all'altra.
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Come si dice la zebra al maschile? Rispetto a questo, come fa la giraffa il verso? Ma come si chiama il verso della giraffa? In generale si usa dire che la giraffa landisce, ovvero emette un landito. In realtà la giraffa è un animale piuttosto silenzioso ed emette solo pochi vocalizzi. Di conseguenza, che cosa mangia l'antilope?
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See Mackie and Schlosser (1996) and Ram et al. (2012) for a key to adult dreissenids. Size: adults < 50 mm, veliger (planktonic larva) 70-200 µm. Native Range: The zebra mussels is native to the Black, Caspian, and Azov Seas. In 1769, Pallas first described populations of this species from the Caspian Sea and Ural River.
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Burchell's zebra (Equus quagga burchellii) is a southern subspecies of the plains zebra.It is named after the British explorer and naturalist William John Burchell. Common names include the bontequagga, Damaraland zebra, and Zululand zebra (Gray, 1824). Burchell's zebra is the only subspecies of zebra which may be legally farmed for human consumption.