TY  - BOOK
AU  - Pilleri,G.
TI  - Investigations on beavers. 
AV  - ZOO QL737.R63I58 
PY  - 1983///
CY  - Berne
PB  - Brain Anatomy Institute
KW  - Evolution (biology)
KW  - Behavior evolution
N1  - Includes bibliographies
ER  -