Fun with science > Knowledge Hub > Science > Animals > ANIMALS GROUPS



  • warm-blooded
  • egg-laying, Vertebrate
  • Beak with no teeth
  • skeletal structure filled with hollows and air sacs
  • Feathers composed of keratin and other proteins for insulation. Eg. Kingfisher, Duck, owl


  • cold blooded
  • egg-laying
  • Vertebrate
  • breathe using gills
  • have a scaly skin
  • fins instead of limbs There are a few Exceptions.
    • Tunas and marlins and mako sharks that are warmer than the water.
    • Fish like a mudskipper or walking catfish crawl on land.
    • Lungfish have lungs.
    • Eels are scale-less.


  • cold-blooded, soft-shelled eggs
  • vertebrate, dry scaly skin
  • Scales can be hard or soft, large or small.
  • snakes, lizards, crocodiles, turtles, and tortoises There are a few Exceptions.
    • Snakes are legless reptiles; Turtles are reptiles with a big shell to protect them.


  • warm-blooded
  • Give Birth to Young Ones
  • vertebrate
  • Possess hair or fur
  • females secrete milk to nourish young ones
  • They are most intelligent among all animals.
  • Humans, dogs, whales, elephants, horses, Bats, Dolphins There are a few Exceptions.
    • Mammals have teeth with the exception of the ant eater which doesn’t have any teeth.
    • A few mammals lay eggs like platypus and the long-nosed spiny anteater.


  • cold-blooded
  • egg-laying
  • Vertebrate
  • When they hatch from their eggs, amphibians have gills so they can breathe in the water.
  • Later, their bodies change, growing legs and lungs enabling them to live on the land
  • first part of their lives in the water and the last part on the land
  • frogs, toads, newts, salamanders, and caecilians


  • cold-blooded
  • egg-laying
  • Invertebrates
  • Their bodies are made up of three sections called the head, the thorax, and abdomen.
  • All insects will have a pair of antennae on their head.
  • All have six legs connected to the thorax
  • Young insects are called nymphs/caterpillars. As insects grow, they get a new hard outer covering by getting rid of the old covering and growing a new one called molting.
  • Butterfly, dragon fly, Cockroach There are a few Exceptions.
    • Arachnids will have eight legs.

Leave a comment

Your email address will not be published.