Introduces a boy who visits a farm and begins to notice similarities and differences between animals. Shows that animals can be grouped according to categories such as insects or fish and as to whether or not they have backbones.
2021
2022
1928
2001
2023
2025
1943
1956
2015
1984
1979
1983
1975
2024
1959
1965
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2012
1960