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Uller C, Jaeger R, Guidry G, Martin C (June 2003). "Salamanders ( Plethodon cinereus) go for more: rudiments of number in an amphibian". Animal Cognition. 6 (2): 105–12. doi:10.1007/s10071-003-0167-x. PMID12709845. S2CID147018.
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Wüstenberg D, Gerber B, Menzel R (August 1998). "Short communication: long- but not medium-term retention of olfactory memories in honeybees is impaired by actinomycin D and anisomycin". The European Journal of Neuroscience. 10 (8): 2742–5. doi:10.1046/j.1460-9568.1998.00319.x. PMID9767405. S2CID23691527.
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Carazo P, Font E, Forteza-Behrendt E, Desfilis E (May 2009). "Quantity discrimination in Tenebrio molitor: evidence of numerosity discrimination in an invertebrate?". Animal Cognition. 12 (3): 463–70. doi:10.1007/s10071-008-0207-7. PMID19118405. S2CID14502342.
Uller C, Jaeger R, Guidry G, Martin C (June 2003). "Salamanders ( Plethodon cinereus) go for more: rudiments of number in an amphibian". Animal Cognition. 6 (2): 105–12. doi:10.1007/s10071-003-0167-x. PMID12709845. S2CID147018.
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