A brief survey of plant and animal kingdom to pinpoint similarities and diversities in nature

 Classification on Animals

Animals are divided into different Groups by their Physical  characteristics .

Vertebrates:

A vertebrate is an animal with a spinal cord surrounded by cartilage or bone. The word comes from vertebrae, the bones that make up the spine. Animals that are not vertebrates are called invertebrates. Vertebrates include birds, fish, amphibians, reptiles, and mammals.

Invertebrates:

An invertebrate is a cold-blooded animal with no backbone. Invertebrates can live on land—like insects, spiders, and worms—or in water. Marine invertebrates include crustaceans (such as crabs and lobsters), mollusks (such as squids and clams), and Cora.