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2. Optimal outbreeding;Bateson,1983
3. Aggregative behavior of tadpoles of the American toad, Bufo americanus, in Michigan;Beiswenger,1972
4. Structure and function in aggregation of tadpoles of the American toad, Bufo americanus;Beiswenger;Herpetologica,1975
5. Evidence for the evolution of unpalatability through kin selection in the Heliconniae (Lepidoptera);Benson;Am. Nat,1971