Difference between animal and mammal

Main difference

The main difference between Animal and Mammal is that Animal is included in the Animalia kingdom category, while Mammal is the type of animal that has mammary glands and hairs.

Animal vs Mammal

The animal belongs to the Animalia kingdom; on the other hand, mammals belong to the class Mammalia. Animal includes all kinds of organisms consisting of warm-blooded and cold-blooded animals; on the other hand, the mammal is the type of organism that is only warm-blooded. Some animals have mammary gland deficiencies; On the other side of the coin, all mammals contain mammary glands that are involved in the synthesis of milk and feeding of the young.

Characteristic traits of animals include consumption of organic material, sexual reproduction, blastula development, and oxygen respiration. In contrast, unique characteristics of mammals include sweat glands, uterus, skin-covered body, single lower jaw bone, mammary glands, three ear bones, neocortex, and giving birth to live young. All animals can never be mammals, but all mammals are animals.

Animals tend to have less complicated habits; on the other hand, mammals have sophisticated practices. Animals include exothermic and endothermic animals; in contrast, mammals include only endothermic animals. Animal comprises both oviparous and viviparous; on the other hand, mammals comprise only viviparous ones.

Not all animals contain well developed and specialized body systems, such as the circulatory system which includes the heart and the respiratory and digestive systems; meanwhile, all mammals contain well-developed body systems and organs like heart and brain, etc.

Comparative chart
Animal Mammal
The animal is the type of organism that has an amplitude The mammal is the type of animal that has mammary glands and hairs.
Belonging to
It belongs to the Animalia kingdom It belongs to the Mammalia class
Includes breathing oxygen, sexual reproduction, consumption of organic matter. Includes sweat glands, uterus, neocortex, single lower jaw, mammary glands.
Comprises of
Includes oviparous and viviparous. Includes viviparous
Has less complicated habits Has more complex habits
Is abundant Is less in number
Includes exothermic and endothermic animals. Contains only endothermic animals
Birds, reptiles, fish, carnivores, microorganisms Humans, elephants, tiger, lion, etc.

What is Animal?

All animals are made of multicellular eukaryotic cells that are said to be included in the kingdom of Animalia. They are widely distributed in the world in different ecosystems, such as aquatic, terrestrial, aerial, amphibian and grassland. Animals are organisms that have radial or bilateral symmetry according to which it has been divided into different classes.

Characteristic features of animals are blastula utilization, sexual reproduction, blastula development, movement, and respiration. Some animals are simple and others are very complex and complicated. There are more than 1.5 billion species living in this world, but they are classified into different species according to their specific characteristics, complexity, and habitats.


  • Phylum Porifera: Includes the simplest animals that live in marine, such as sponges, sicón.
  • Phylum Coelenterata: includes diploblastic animals such as hydra, jellyfish, and sea anemone.
  • Phylum Platyhelminthes: includes triploblastic flatworms that are parasites like tapeworm, liver fluke.
  • Phylum Nematoda: Includes triploblastic roundworms that have pseudocoelom like Ascaris.
  • Phylum Annelida: includes animals that have true coelom and segmented bodies such as leeches and earthworms.
  • Phylum Mollusca: Includes animals that have a reduced triploblastic coelom, such as snails, mussels, and octopuses.
  • Phylum Arthropoda: includes animals with jointed legs such as insects, butterflies, crabs, mosquitoes, and spiders.
  • Phylum Echinodermata: they are marine animals that have scaly skin such as sea urchin and sea cucumber.
  • Phylum Protochordata: includes animals that contain notochord and live in marine ecosystems such as Herdmania and Balanoglossus.
What is Mammal?

The mammal is made of multicellular eukaryotic cells which are said to be included in the kingdom Animalia but which are primarily dealt with in the class Mammalia. It contains a large majority of animals and they are scattered in almost all the world’s ecosystems, such as land, water and air. All mammals tend to have a bilateral symmetry that gives them wide varieties.

The characteristic features of mammals are the presence of mammary glands, presence of hairs and skins on the skin of animals, presence of sweat glands, contain ear bones, contain uterus in the female reproductive system in which the embryo develops , the ability to give birth to their young, and the presence of the placenta during pregnancy.


  • Placentals: includes animals that can develop their young, within the uterus through placentas such as primates and rodents.
  • Marsupials: Includes animals that give birth to their young immaturely and complete their maturity after birth, such as kangaroos.
  • Monotremes: includes animals that lay large yolk eggs such as platypus and echidnas.

Key differences

  1. Animal includes in the kingdom Animalia; on the other hand, mammal is included in the class Mammalia.
  2. Not all animals have fur and hair on their bodies; on the other hand, all mammals have skins and hairs on their bodies.
  3. Some animals have simpler habits than others; On the other side of the coin, all mammals have complicated practices.
  4. The animal can be endothermic or ectothermic; on the other hand, the mammal is only endothermic.
  5. Not all animals contain complicated body systems, such as the circulatory and respiratory systems; on the other hand, all mammals include complex body systems, like humans.
  6. Not all animals contain mammary glands and sweat glands; on the other hand, all mammals contain mammary glands and sweat glands.
  7. Not all animals have a complete brain and thinking capacity; On the other side of the coin, all mammals, like humans, have the ability to think better.
  8. Some animals have simple sense organs and a less organized nervous system; on the other hand, all mammals have better sense organs and an organized nervous system.
  9. All animals do not contain a uterus in the female reproductive system; on the other hand, all female mammals include the uterus in the reproductive system.
  10. Animals include oviparous and viviparous; on the other hand, mammals include only viviparous ones.
Final Thought

The above discussion concludes that animal includes organisms that belong to the Animalia kingdom, while mammals include the type of organisms that belongs to the Mammalia class.

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