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Karyotypes of Leptodactylidae Anurans
Journal of Herpetology, 1972Karyotypes of 8 species of Leptodactylidae amphibians were studied. They constitute two groups with 2n=22 and 2n=26 chromosomes. Centric fusions and pericentric inversions are the most important mechanisms of karyotype differentiation among these species. Cytophotometric measurements of 7 species showed a gradual increase of DNA content. * * *
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Function of the Anuran Conus Arteriosus
Journal of Experimental Biology, 1974ABSTRACT The anuran conus arteriosus was studied by direct observation of its structure and function and by observing the effects of artificially induced contraction on the pressure pulse in the arterial arches. The beat of the anuran conus was found to close the outlet to the pulmocutaneous arches. The timing of the beat of the conus in
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Electrocardiographic characteristics of four anuran amphibia
Comparative Biochemistry and Physiology Part A: Physiology, 1974Abstract 1. 1. Multiple-lead electrocardiograms (ECG's), recorded in the field, are presented for four species of anuran amphibians. 2. 2. The characteristics of these ECG's are discussed in terms of comparative cardiac structure between reptiles and amphibians. 3. 3.
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2016
Learning to recognize and categorize other individuals is a cornerstone of animal social behavior. By learning about individually distinctive signal properties, receivers can perceptually discriminate among conspecifics to direct appropriate behaviors toward particular individuals.
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Learning to recognize and categorize other individuals is a cornerstone of animal social behavior. By learning about individually distinctive signal properties, receivers can perceptually discriminate among conspecifics to direct appropriate behaviors toward particular individuals.
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