ntrodução Dentro da classificação

ntrodução

Dentro da classificação dos animais vertebrados, os mamíferos são os mais importantes. As fêmeas desta espécie possuem glândulas mamárias que secretam leite, alimento indispensável aos mamíferos da mais tenra idade.

Informações e características dos mamíferos

A maioria dos mamíferos possui pêlos, alguns possuem o corpo parcialmente coberto,enquanto que outros possuem pêlos por todo o corpo.

Objetivamente podemos dizer que seu coração possui as seguintes características: quatro câmaras, artéria aorta curvada para a esquerda e diafragma que separa as cavidades do peito do abdômen.

Sangue dos mamíferos

O sangue dos mamíferos mantém-se sempre aquecido, ou seja, esta espécie possui uma temperatura corporal que independente da temperatura do meio externo.

Grupos que fazem parte

O grupo dos animais mamíferos é bastante vasto, fazem parte deste grupo os Marsupiais (exemplos: gambá, cangurú e coala), espécies na qual ocorre o desenvolvimento da cria principalmente na parte externa do corpo da fêmea, dentro de uma bolsa chamada marsúpio.

Também se incluem neste grupo animais carnívoros terrestres como, por exemplo, gato, cachorro e urso, assim como animais aquáticos como foca, leão marinho e morsa.

Há ainda outros mamíferos aquáticos como as baleias, os golfinhos, que fazem parte da ordem cetácea (animais marinhos pertencentes à classe dos mamíferos), peixes-boi, dugongos, que são os menores membros da ordem Sirenia (ordem de mamíferos marinhos).

Os elefantes (da ordem proboscídea) são mamíferos placentários, que se caracterizam pela presença de um nariz desenvolvido em forma de tromba; os morcegos, que são os únicos animais mamíferos (ordem Chiroptera) capazes de voar, representam um quarto de toda a fauna de mamíferos do mundo.

Há ainda outros mamíferos pertencentes a outras diferentes ordens como a preguiça, o tatu e o tamanduá (ordem Edentata); o castor, a marmota, o porco espinho e o esquilo (ordem Rodentia).

Há dois grupos de animais mamíferos de casco, sendo eles a maior parte dos membros da ordem dos Perissodactyla (grupo de mamíferos terrestres ungulados com um número ímpar de dedos nas patas, que inclui os cavalos, os tapires e os rinocerontes) e a ordem Artiodactyla (os artiodátilos formam uma ordem de animais mamíferos ungulados com um número par de dedos nas patas, é um grupo muito variado, com cerca de 220 espécies descritas, que incluem muitos animais com grande importância econômica para o homem, como o boi, a cabra, o camelo, o hipopótamo, o porco, etc.).

Os Humanos também pertencem ao grupo dos animais mamíferos (ordem dos Primatas) e os macacos também seguem esta mesma ordem.

Classificação científica dos mamíferos:

Domínio: Eukaryota
Reino: Animalia
Subreino: Metazoa
Filo: Chordata
Subfilo: Vertebrata
Infrafilo: Gnathostomata
Superclasse: Tetrapoda
Classe: Mammalia

Exemplos de animais mamíferos: homem, baleia, porco, boi, cachorro, gato, girafa, cavalo, leão, rato, canguru, elefante, macaco, urso, anta, onça, raposa, leopardo, lontra, peixe-boi, cervo, javali, lobo guará, jaguatirica, puma e doninha.

Curiosidade:

- A baleia azul (Balaenoptera musculus) é o maior mamífero do mundo. Seu comprimento é de aproximadamente 30 metros e seu peso pode chegar a 140 tonedas.

Resultados (Inglês) 1:

ntroduction Within the classification of vertebrates, mammals are the most important. The females of this species have mammary glands that secrete milk, food essential to mammals from an early age. Information and characteristics of mammals Most mammals have hair, some have the body partially covered, while others have hairs all over the body. Objectively we can say that her heart has the following features: four cameras, curved to the left aorta artery and diaphragm that separates the chest cavity from the abdomen. Blood of mammals The blood of mammals remains always heated, i.e. this species has a body temperature that is independent of the temperature of the external environment. Groups that are part The Group of animals is quite vast, are part of this group the marsupials (examples: opossum, Kangaroo and Koala), species in which the development of creates mainly on the outside of the female's body, inside a sack called the pouch. Also included in this group animals terrestrial carnivores, such as cat, dog and bear, as well as aquatic animals like seal, sea lion and walrus. There are still other aquatic mammals such as whales, dolphins, which are part of the order cetácea (marine animals belonging to the class of mammals), manatees, dugongs, which are the smallest members of the order Sirenia (order of marine mammals). The elephants (of order proboscídea) are placental mammals, which are characterized by the presence of a developed nose shaped face; the bats, which are the only animals mammals (order Chiroptera) capable of flying, represent a quarter of the entire fauna of mammals in the world. There are also other mammals belonging to other different orders as the sloth, Armadillo and giant anteater (order Edentata); the Beaver, Groundhog, hedgehog and the squirrel (order Rodentia). Two animal groups-hull mammals, most members of the order of the Perissodactyla (Group of terrestrial mammals ungulates with an odd number of toes on the feet, which includes horses, tapirs and rhinos) and the order Artiodactyla (even-toed ungulate them form an order of animals mammals ungulates with an even number of toes on feet , is a varied group, with about 220 species of which include many animals with great economic importance to humans, like the ox, goat, camel, hippopotamus, pig, etc.). Humans also belong to the Group of animals mammals (Primate order) and the apes also follow this same order. Scientific classification of mammals: Domain: EukaryotaKingdom: AnimaliaSubkingdom: MetazoaPhylum: ChordataSubphylum: VertebrataInfraphylum: GnathostomataSuperclass: TetrapodaClass: Mammalia Examples of animals mammals: man, whale, pig, ox, dog, cat, giraffe, horse, Lion, mouse, Kangaroo, elephant, monkey, bear, tapir, Jaguar, Leopard, Fox, otter, manatees, deer, wild boar, Maned Wolf, ocelot, puma and weasel. Curiosity: -The blue whale (Balaenoptera musculus) is the largest mammal in the world. Its length is approximately 30 meters and their weight can reach 140 tonedas.

Resultados (Inglês) 2:

ntroductIon Within the classification of vertebrates, mammals are the most important. The females of this species have mammary glands that secrete milk, essential food for mammals from an early age. Information and characteristics of mammals Most mammals have hair, some have partially covered body, while others have hair all over the body. Objectively we can say that your heart has the following characteristics:. four chambers, curved aorta to the left and diaphragm that separates the abdomen from the chest cavity blood of mammals The blood of mammals remains always heated, that is, this species has a . body temperature regardless of the temperature of the external environment groups that make up the group of mammals is very wide, are part of this group the Marsupials (examples: possum, kangaroo and koala), species in which there is the development of the offspring mostly in outside the female's body, in a bag called pouch. Also included in this terrestrial carnivores group, for example, cat, dog and bear, as well as aquatic animals like seal, sea lion and walrus. There are still other aquatic mammals like whales, dolphins, which are part of the cetacean order (marine animals of the mammalian class), manatees, dugongs, which are the smallest members of the Sirenia order (marine mammals). Elephants (the Proboscidea order) are placental mammals which are characterized by the presence of developed a nose-shaped trunk; bats, which are the only mammals (Chiroptera order) capable of flying, representing a quarter of all the world's mammalian fauna. There are also other mammals belonging to other different orders as the sloth, armadillo and anteater (order Edentata ); the beaver, the marmot, the porcupine and squirrel (Rodentia order). There are two mammals groups hull, and they most members of the order of Perissodactyla (hoofed land mammals group with an odd number of fingers on feet, including horses, tapirs and rhinos) and the order Artiodactyla (the artiodactyls form an order of animals mammals ungulates with an even number of toes on the paws, is a very diverse group, with about 220 described species, which They include many animals with great economic importance to man, like the ox, goat, camel, hippo, pig, etc.). Humans also belong to the group of mammals (order of Primates) and monkeys also follow this same order. Scientific classification of mammals: Domain: Eukaryota Kingdom: Animalia subkingdom: Metazoa Phylum: Chordata Subphylum: Vertebrata Infrafilo: Gnathostomata superclass tetrapoda Class: Mammalia Examples of mammals: man, whale, pig, ox, dog, cat, giraffe, horse, lion, mouse, kangaroo, elephant, monkey, bear, tapir, jaguar, fox, leopard, otter, manatee, deer, wild boar, maned wolf, ocelot, puma and ferret. Facts: - The Blue Whale ( Balaenoptera musculus) is the world's largest mammal. Its length is approximately 30 meters and its weight can reach 140 tonedas.