| 单词 | mammal |
| 释义 | mammal (once / 1299 pages) n What do you have in common with your hamster, a whale, a bat, a giraffe, and the kid who packs your groceries? Every one is a mammal — a hairy, warm-blooded, milk-drinking vertebrate, just like you. All mammals are part of the scientific class mammalian, which got its name from the mammary glands used to nourish mammal babies. A note of interest: although a characteristic of mammals is that babies are born live, there’s a group of mammals called monotremes, like the platypus, that lay eggs; but whose young’uns, after they hatch, still get fed mama’s milk. Go figure. WORD FAMILYmammal: mammalian, mammals+/mammalian: mammalians USAGE EXAMPLES“It is illegal to interrupt any marine mammal’s natural behavior,” the guidelines say. The Guardian(Dec 31, 2016) There are many uncertainties, such as whether the small sea mammal would even survive captivity. Los Angeles Times(Dec 30, 2016) Elk are enormous but surprisingly graceful mammals who often venture down from higher elevations in search of food during the winter. Reuters(Dec 28, 2016) n any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk Syn|Exp|Hypo|Hyper mammalian Lucy incomplete skeleton of female found in eastern Ethiopia in 1974 Sir Bartonthoroughbred that won the triple crown in 1919 Gallant Foxthoroughbred that won the triple crown in 1930 Omahathoroughbred that won the triple crown in 1935 War Admiralthoroughbred that won the triple crown in 1937 Whirlawaythoroughbred that won the triple crown in 1941 Count Fleetthoroughbred that won the triple crown in 1943 Assaultthoroughbred that won the triple crown in 1946 Citationthoroughbred that won the triple crown in 1948 Secretariatthoroughbred that won the triple crown in 1973 Seattle Slewthoroughbred that won the triple crown in 1977 Affirmedthoroughbred that won the triple crown in 1978 female mammal animals that nourish their young with milk tuskerany mammal with prominent tusks (especially an elephant or wild boar) prototherianprimitive oviparous mammals found only in Australia and Tasmania and New Guinea metatherianprimitive pouched mammals found mainly in Australia and the Americas eutherian, eutherian mammal, placental, placental mammalmammals having a placenta; all mammals except monotremes and marsupials fossorial mammala burrowing mammal having limbs adapted for digging egg-laying mammal, monotremethe most primitive mammals comprising the only extant members of the subclass Prototheria marsupial, pouched mammalmammals of which the females have a pouch (the marsupium) containing the teats where the young are fed and carried farm animal, livestock, stockany animals kept for use or profit bullmature male of various mammals of which the female is called `cow'; e.g. whales or elephants or especially cattle cowmature female of mammals of which the male is called `bull' yearlingan animal in its second year buckmature male of various mammals (especially deer or antelope) doemature female of mammals of which the male is called `buck' insectivoresmall insect-eating mainly nocturnal terrestrial or fossorial mammals aquatic mammalwhales and dolphins; manatees and dugongs; walruses; seals carnivorea terrestrial or aquatic flesh-eating mammal Fissipediain some classifications considered a suborder of Carnivora Orycteropus afer, aardvark, ant bear, anteaternocturnal burrowing mammal of the grasslands of Africa that feeds on termites; sole extant representative of the order Tubulidentata bat, chiropterannocturnal mouselike mammal with forelimbs modified to form membranous wings and anatomical adaptations for echolocation by which they navigate gnawing mammal, lagomorphrelative large gnawing animals; distinguished from rodents by having two pairs of upper incisors specialized for gnawing gnawer, rodentrelatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing naked mole ratfetal-looking colonial rodent of East Africa; neither mole nor rat; they feed on tubers and have a social structure similar to that of honeybees and termites Damaraland mole ratcolonial mole rat of western Africa; similar to naked mole rat Ungulatain former classifications a major division of Mammalia comprising all hoofed mammals; now divided into the orders Perissodactyla (odd-toed ungulates) and Artiodactyla (even-toed ungulates) hoofed mammal, ungulateany of a number of mammals with hooves that are superficially similar but not necessarily closely related taxonomically Unguiculatain former classifications a major division of Mammalia comprising mammals with nails or claws; distinguished from hoofed mammals and cetaceans unguiculate, unguiculate mammala mammal having nails or claws coney, cony, das, dassie, hyraxany of several small ungulate mammals of Africa and Asia with rodent-like incisors and feet with hooflike toes pachydermany of various nonruminant hoofed mammals having very thick skin: elephant; rhinoceros; hippopotamus edentateprimitive terrestrial mammal with few if any teeth; of tropical Central America and South America anteater, pangolin, scaly anteatertoothless mammal of southern Africa and Asia having a body covered with horny scales and a long snout for feeding on ants and termites primateany placental mammal of the order Primates; has good eyesight and flexible hands and feet tree shrewinsectivorous arboreal mammal of southeast Asia that resembles a squirrel with large eyes and long sharp snout colugo, flying cat, flying lemurarboreal nocturnal mammal of southeast Asia and the Philippines resembling a lemur and having a fold of skin on each side from neck to tail that is used for long gliding leaps proboscidean, proboscidianmassive herbivorous mammals having tusks and a long trunk plantigrade, plantigrade mammalan animal that walks with the entire sole of the foot touching the ground as e.g. bears and human beings digitigrade, digitigrade mammalan animal that walks so that only the toes touch the ground as e.g. dogs and cats and horses craniate, vertebrate animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium |
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