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Há 15 horas · The dingo is a medium-sized canid with a lean, hardy body that is adapted for speed, agility, and stamina. The head is the widest part of the body, wedge-shaped, and large in proportion to the body. [18] Captive dingoes are longer and heavier than wild dingoes, as they have access to better food and veterinary care.
Há 15 horas · Cattle are large artiodactyls, mammals with cloven hooves, meaning that they walk on two toes, the third and fourth digits. Like all bovid species, they can have horns, which are unbranched and are not shed annually. Coloration varies with breed; common colors are black, white, and red/brown, and some breeds are spotted or have mixed colors.
Há 15 horas · The platypus is undoubtedly a unique and fascinating presence in nature. Although it belongs to the broad group of mammals, it has a unique way of reproduction: laying eggs.
Há 15 horas · The largest dinosaurs, and the largest animals to ever live on land, were the plant-eating, long-necked Sauropoda. The tallest and heaviest sauropod known from a complete skeleton is a specimen of an immature Giraffatitan discovered in Tanzania between 1907 and 1912, now mounted in the Museum für Naturkunde of Berlin.
Há 15 horas · The eukaryotes ( / juːˈkærioʊts, - əts / yoo-KARR-ee-ohts, -əts) constitute the domain of Eukarya or Eukaryota, organisms whose cells have a membrane-bound nucleus. All animals, plants, fungi, and many unicellular organisms are eukaryotes.
Há 15 horas · Mammals and birds that survived the extinction fed on insects, larvae, worms, and snails, which in turn fed on dead plant and animal matter. Scientists theorise that these organisms survived the collapse of plant-based food chains because they fed on detritus. In stream communities, few groups of
Há 15 horas · Animal and lab studies suggest that Relenza , which is in the same class of drugs as Tamiflu, may also be effective against H5N1. In a study performed on mice in 2000, "zanamivir was shown to be efficacious in treating avian influenza viruses H9N2, H6N1, and H5N1 transmissible to mammals".
