Armored animals
Describes some armored animals, such as the one-celled protozoa with a hard covering, the armadillo, and shellfish, and compares the effectiveness of this armor to other forms of animal protection.
Materias
Ediciones (2)
- Armoured Animals (1972)
Methuen young books · ISBN 9780437899248
- Armored animals (1971)
Morrow · inglés
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