Chapter 21-Birds. Class Aves- Birds ~8,700 species Forelimbs modified into wings Amniotic eggs (hard-shelled) Scaled feet and legs Strong, light-weight.
WRITTEN BY KELLY. Sea turtles lived before the dinosaurs 200 million years ago. The archelon was bigger than a car. They have evolved to become smaller.
Reproduction in: 1.Amphibians 2.Reptiles 3.Turtles 4.Snakes 5.lizards vet-student.mihanblog.com.
Birds
1 1006 Births and Hatches, Fetus Identified, Egg Accessions and Record Events.
Birds are versatile animals. Some birds can live in the tropics and others can live in polar regions. Bird Characteristics Birds 1 1.
James & Deacon. Only top teeth can be seen when the jaws are closed. They have 60 teeth. They can grow up to 3000 teeth. Alligators have U shaped snout.
1006 Births and Hatches , Fetus Identified, Egg Accessions and Record Events
Helping Students Study and Learn: A School/library Partnership
The Clutch
The Life Cycle of a Frog
