Modern Reptiles
Lizards
Lay eggs. Mother does not provide nourishment.
Snakes
Most are predators.
Iguanas are herbivores
Turtles
200 million years old.
fossils showed turtles had teeth, but modern turtles do not.
Tortoises live on land.
Crocodilians include alligators and crocodiles.
close relative of birds.
lay eggs.
during courtship males and females grunt and bellow.
freshwater turtles pray on fish and invertebrates
feed on plants
evolved from short legged long bodied lizards during the cretaceous.
all have teeth, but all have fangs.
tortoises eat plants.
both share a four chambered heart.