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What are the two hallmarks of mammals?
They have fur and fee their young milk. Humans are mammals.
How come dinosaurs don't have fur?
Dinosaurs didn't have fur because it likely evolved after they went extinct. One theory is that fur developed as a way for mammals to regulate their body temperature and protect themselves from the environment, which wasn't a challenge for dinosaurs during their time.
How can scientists tell megatheriums was mammals?
Scientists can tell Megatheriums were mammals by examining their skeletal features, which show characteristics common to mammals such as specialized teeth, a jaw structure adapted for chewing, and a reproductive system unique to mammals. Additionally, the presence of hair or fur impressions in some preserved specimens further supports the idea that Megatheriums were mammals.
Explain the evidence of evolution presented by the mammals of Australia?
The evolutionary evidence presented by mammals in Australia includes unique marsupial mammals like kangaroos, koalas, and wallabies, which are endemic to the continent. The presence of prehistoric marsupial fossils in Australia supports the idea of an ancient lineage of mammals distinct from placental mammals found elsewhere. The diversity and adaptations of Australian mammals, such as the egg-laying monotremes like the platypus and echidna, further highlight the evolutionary history of mammals in Australia.
What is the scientific classification for dolphins?
The seven levels of classification of a dolphin start with the kingdom of Animalia. The phylum is Chordata which means they have a spine. Their class is Mammalia which means they're mammals. The order is Cetacea, the suborder is Odontoceti. There are five families of dolphin - Delphinidae, Iniidae, Lipotidae, Platanistidae, and Pontoporiidae.
Why do whales and dolphins belong to the same group of mammals?
Mammals (class Mammalia) are group of vertebrate animals in which the young are nourished with milk from special mammary glands of the mother. In addition to these characteristic milk glands, mammals are distinguished by several other unique features. Hair is a typical feature, although in many whales it has disappeared except in the fetal stage. This ability to feed the offspring with milk occurs in whales as well.
What is the unique feature of Tom Cats, a restaurant with an all-girl staff?
The unique feature of Tom Cats, a restaurant with an all-girl staff, is that it provides a dining experience where all the servers are female.
A distinguishing feature of all mammals?
All mammals feed their young with milk, have hair, have a neocortex region of the brain, and have three middle ear bones. There are other characteristics shared by all mammals, but the above four are (for the most part) that only ones unique to mammals.
Why aren't birds mammals?
Birds are not mammals because they belong to a different class of animals called Aves, while mammals belong to the class Mammalia. Birds have feathers, lay eggs, and have a unique respiratory system, while mammals have fur or hair, give birth to live young, and nurse their offspring with milk.
What is distinctive of mammals?
Mammals have internal breeding and have sexual intercourse in order to fertalize the eggs. Other animals have external breeding where the female lays the eggs and then the male fertilizes it. In simpler terms, Mammals have sex, and other animals don't.
Why prototherians are unfinished mammals?
Prototherians, such as the platypus and echidna, are considered "unfinished" mammals because they exhibit both reptilian and mammalian characteristics. They lay eggs like reptiles, but also produce milk for their young like mammals. These unique features suggest that prototherians represent an ancient stage in mammalian evolution before the development of more distinct mammalian traits.
What are some unique things to mammals?
Mammals have hair and they give milk to their babies.
Which feature is unique to the axis?
Dens are unique to the axis.
What animal has human like fingerprints?
Koalas have fingerprints that are very similar to human fingerprints, with unique patterns that can be used for identification. This distinct feature has made them the only non-human animal known to possess this characteristic.
Are great white sharks fishes or mammals?
Great white sharks are fish not mammals. Mammals are unique in that they have body hair, have three middle ear bones (the incus, malleus, and stapes), and nourish their young with milk from the female mammary glands. The great white shark has none of the above characteristics.
What are some characteristics of all creatures belonging to class mammalia?
Mammals have a number of characteristics that make them mammals. Firstly, they are chordate animals possessing vertebrae. But that take us down to all vertebrates; beyond that the mammalian features are 1. Females have mammary glands 2. Unique Sweat Glands (only mammals have) 3. Presence of Hair and/or Fur 4. Three middle ear bones 5. Presence of Neocortex in brain
What did aristides identify as the unique feature of the roman empire?
Aristides identified Christianity as the unique feature of the Roman Empire.
