what is the term for a mammal that lays eggs
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Why Odd Egg-Laying Mammals Still Exist The reason that odd, egg-laying mammals still exist today may be because their ancestors took to the water, scientists now suggest. The egg-laying mammals — the monotremes, including the platypus and spiny anteaters — are eccentric relatives to the rest of mammals, which bear live young. In addition to laying eggs, other quirks make them seem more like reptiles than our kin. They have a reptilian gait with legs on the sides rather than underneath the body, for instance, and a single duct for urine, feces and sex instead of multiple openings.
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What makes a mammal a mammal? A Mammal is normally defined as a warm blooded animal with a covering of fur, skin or hair which gives birth to live young who are nourished with milk, and who are vertebrate. … All mammals suckle their young, but there is a sub-group known as monotremes, which are the egg-laying mammals.
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egg 1 the roundish reproductive body produced by the female of certain animals, as birds and most reptiles, consisting of an ovum and its envelope of albumen, jelly, membranes, egg case, or shell, according to species. 2. such a body produced by a domestic bird, especially the hen. 3. the contents of an egg or eggs:
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Egg incubation Incubation refers to the process by which certain oviparous (egg-laying) animals hatch their eggs; it also refers to the development of the embryo within the egg. Multiple and various factors are vital to the incubation of various species of animal.
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Hack GMail #2: Now you can open the game and the hack is loaded. *You have to close game before open hack. You can take a look at the video demonstration: This software is compatible and work perfectly on Windows XP, Windows Vista, Windows 7, Windows 8 and other windows distributions.**Recommendation before run this software: scan your computer about viruses or malware.You have to close game before open hack. You can take a look at the video demonstration: This software is compatible and work perfectly on Windows XP, Windows Vista, Windows 7, Windows 8 and other windows distributions. **Recommendation before run this software: scan your computer about viruses or malware.
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egg 1. The mature reproductive cell of female animals. The nucleus of an egg is capable of fusing with the nucleus of a sperm (the male reproductive cell) to form a new organism. In many species, eggs are produced by the ovaries. An egg carries half as many chromosomes as the other cells of the body.Also called ovum. 2.In many animals, a structure consisting of this reproductive cell together with nourishment for the developing embryo and often a protective covering. It is laid outside the body of the female.n egg carries half as many chromosomes as the other cells of the body. Also called ovum. 2. In many animals, a structure consisting of this reproductive cell together with nourishment for the developing embryo and often a protective covering.
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Platypus The platypus (Ornithorhynchus anatinus) also known as the duck-billed platypus is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania.he platypus (Ornithorhynchus anatinus) also known as the duck-billed platypus is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania.
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Egg Laying Mammals Egg Laying Mammals. The duck-billed platypus and the spiny anteater are mammals that lay eggs rather than give live birth. The platypus has a bill like a duck, fur like a mammal and webbed feet. It lays eggs that look like reptile eggs.
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- Platypuses are one of only two types of mammals to lay eggs. Fertilised platypus eggs stay in the mother's body for around 28 days. The egg is incubated by the mother curling …around it and keeping it warm and dry in the chamber of the burrow for another 10 days.
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Echidna Facts Echidna Facts. Echidna is a type of primitive mammals that belongs to the group of monotremes (mammals that lay eggs). Genus Echidna consists of two species: short-beaked echidna and long-beaked echidna. Short-beaked echidna inhabits Australia and New Guinea, while long-beaked lives only in the highlands of New Guinea.
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Platypus The platypus (Ornithorhynchus anatinus) also known as the duck-billed platypus is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania.he platypus has extra bones in the shoulder girdle, including an interclavicle, which is not found in other mammals. As in many other aquatic and semiaquatic vertebrates, the bones show osteosclerosis, increasing their density to provide ballast.
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Birth In some species the offspring is precocial and can move around almost immediately after birth but in others it is altricial and completely dependent on parenting. In marsupials, the fetus is born at a very immature stage after a short gestational period and develops further in its mother's wombs pouch. It is not only humans and mammals that give birth. Some reptiles, amphibians, fish and invertebrates carry their developing young inside them. Some of these are ovoviviparous, with the eggs being hatched inside the mother's body, and others are viviparous, with the embryo developing inside her body, as in mammals.
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- The only extant monotremes (mammals that lay eggs instead of producing by live birth) are the platypus and two species of echidna, the long-beaked echidna and the short-beaked echidna. Debate is still out on how many species of long-beaked echidna there are.
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Egg An egg results from fertilization of an ovum. Most arthropods, vertebrates, and mollusks lay eggs, although some do not, such as scorpions and most mammals.Reptile eggs, bird eggs, and monotreme eggs are laid out of water, and are surrounded by a protective shell, either flexible or inflexible.he eggs of the egg-laying mammals (the platypus and the echidnas) are macrolecithal eggs very much like those of reptiles. The eggs of marsupials are likewise macrolecithal, but rather small, and develop inside the body of the female, but do not form a placenta.
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- plat·y·pus. n. pl. plat·y·pus·es. A semiaquatic egg-laying mammal (Ornithorhynchus anatinus) of eastern Australia and Tasmania, having a broad flat tail, webbed feet, a snout resembling a duck's bill, and in the male, venomous spurs on the hind legs. Also called duckbill, duck-billed platypus. [New Latin., former genus name, from Greek.lat·y·pus. n. pl. plat·y·pus·es. A semiaquatic egg-laying mammal (Ornithorhynchus anatinus) of eastern Australia and Tasmania, having a broad flat tail, webbed feet, a snout resembling a duck's bill, and in the male, venomous spurs on the hind legs. Also called duckbill, duck-billed platypus. [New Latin.
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What is an Amniotic Egg? - Definition & Examples Now that you know what an amniotic egg is, you may question which animals use amniotic eggs. The answer to this question is any reptile, bird or mammal. Animals that use amniotic eggs are called amniotes. Let's look at a few examples now.
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What is amniotic egg? Reptiles, mammals, and birds lay amniotic eggs, which contain a yolk to nourish the developing organism. Eggs are used to protect the organism as it develops, and the egg also aids in gas and energy exchange. Reptiles, mammals, and birds lay amniotic eggs, which contain a yolk to nourish the developing organism.
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- Marsupials (such as kangaroos) are pouched mammals which  give birth to live young. The young (called joeys) are very  undeveloped, with the embryo resembling a bean. The jo … eys are then  carried in a pouch, where they latch on to a teat which swells in  their mouth, to continue their development.ost male marsupials, with the exception of the largest  species, the Red Kangaroo, Eastern Grey and Western Grey Kangaroos,  have a bifurcated or two-pronged penis to accommodate the  females' two vaginas.    Monotremes are egg-laying mammals. The young are not born,  but hatched.
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- Baby platypuses. Most mammals give birth to live young. Platypuses, however, lay eggs. They are a species of primitive mammals called monotremes. Echidnas, or spiny anteaters, are the only other mammals that lay eggs.
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- 1 Some marsupials include the kangaroo, the koala, and the opossum. 2  Egg laying-A few mammals lay eggs, they are called monotremes. 3  Monotremes include the platypus and the long-nosed spiny anteater. 4  A giraffe's tongue is 20 inches long. 5  They use it to clean their own ears.
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Platypus The platypus (Ornithorhynchus anatinus) also known as the duck-billed platypus is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania.n captivity, platypuses have survived to 17 years of age, and wild specimens have been recaptured when 11 years old. Mortality rates for adults in the wild appear to be low. Natural predators include snakes, water rats, goannas, hawks, owls, and eagles.
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Pregnancy (mammals) A pregnant lioness. In mammals, pregnancy is the period of reproduction during which a female carries one or more live offspring from implantation in the uterus through gestation. It begins when a fertilized zygote implants in the female's uterus, and ends once it leaves the uterus.
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Egg Laying Mammals List and Facts with Pictures Coming towards the reproduction side of platypus, female lays a couple of eggs in a hole that is especially dug for this purpose. All the platypuses are found in and around water because they mainly feed on the marine insects, their larvae and other small organisms.
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"What is the ""permanent press"" cycle on the dryer for?" One day my mom came home from work with new sheets and she said, Thank God! Sheets that would come out of the dryer and not need ironing. Pretty soon everything became not so wrinkled. When you dry on the permanent press option, it means it doesn't dry things quite so dry or hot. You yank them out of the dryer and hang them and you may not have to iron them. And permanent press came out in the 50's.
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Platypus Platypuses are both bizarre looking and unusually adapted. They belong to a sub-group of mammals that lay eggs rather than giving birth to live young (monotremes). When the first platypus was shipped to Britain from Australia, people thought it was a joke and that someone had sewn a duck's bill to a mammal's body.hey belong to a sub-group of mammals that lay eggs rather than giving birth to live young (monotremes). When the first platypus was shipped to Britain from Australia, people thought it was a joke and that someone had sewn a duck's bill to a mammal's body.
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Platypus The platypus (Ornithorhynchus anatinus), sometimes referred to as the duck-billed platypus, is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania. Together with the four species of echidna, it is one of the five extant species of monotremes, the only mammals that lay eggs instead of giving birth.