Cerrar
Vertebrates
Plylum Chordata
Phylum Chordata Subgroups
Groups of vertebrates
Evolution of vertebrates
Characteristics of vertebrates
Internal skeleton
The nervous system
The sense organs
Nutrition and reproduction
FISH
Characteristics of fish
Chondrichthyes: Cartilaginous fish
Osteichthyes: Bony fish
AMPHIBIANS
Urodela
Anura
REPTILES
Characteristics of reptiles
Chelenia: turtles and tortoises
Squamata (Orphidia): snakes
Squamata (Sauria): lizards
Crocodilia
BIRDS
Characteristics of birds
Nutrition in birds
Reproduction in birds
MAMMALS
Characterisitcs of mammals
Classification of mammals
Characteristics of humans
