an endothermic vertebrate that has feathers, a four chambered heart and lays eggs.
one of the large feathers that give shape to a bird's body.
short, fluffy feathers that trap heat and keep the bird warm.
an internal storage tank used for storing food.
a thick-walled muscular part of the stomach in birds.
an upward force that helps a bird to fly.
endothermic vertebrates that have a four-chambered heart and skin covered with fur or hair.
organs inside the mother that produces milk.
flat-edged teeth used to bite off and cut food.
pointed teeth that stab and tear food.
have broad, flat upper surfaces for grinding and shredding food.
a large muscle that helps move air in and out of the lungs.
mammals whose young are born at an early stage of development and continue to develop in a pouch in their mother's body.
length of time between fertilization and birth.
develops inside the mother's body until it's body systems can function independently.
an organ in pregnant female mammals that passes materials between the mother and developing embryo.
3 main groups of mammals
Monotremes, Marsupials, Placental Mammals
3 types of bird flight
Flapping, Soaring and Gliding, Diving
Ways mammals can move
Run, hop, swing, swim, fly, glide.