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Aquatic adaptations in the nose of carnivorans: evidence from the turbinates
- B. Van Valkenburgh, A. Curtis, G. Slater
- Environmental Science, BiologyJournal of anatomy
- 1 March 2011
Using phylogenetic comparative methods, strong support for convergence on 1 : 3 proportions in aquatic taxa and near the inverse in terrestrial taxa is found, indicating that aquatic mustelids and pinnipeds independently acquired similar proportions of olfactory to respiratory turbinates.
Reducing the Gender Achievement Gap in College Science: A Classroom Study of Values Affirmation
Morphological convergence of the prey-killing arsenal of sabertooth predators
- J. Meachen-Samuels
- Geography, BiologyPaleobiology
- 4 January 2012
Results indicate that sabertooth morphs with longer, thinner canines show more robust limb proportions, and indicate a positive functional relationship between saber elongation and increased forelimb robustness, which suggests that saber carnivorans demonstrated niche partitioning of predation strategies according to canine shape and correspondingForelimb morphology.
Forelimb indicators of prey‐size preference in the Felidae
- J. Meachen-Samuels, B. Van Valkenburgh
- Biology, Environmental ScienceJournal of morphology
- 1 June 2009
It is found that felids and canids differ in forelimb scaling, which emphasizes the dual use of forelimbs for locomotion and prey capture in felids.
The First Mid-Blancan Occurrence of Agriotherium (Ursidae) in North America: a Record from Hagerman Fossil Beds National Monument, Idaho
Members of the subfamily Ursinae dispersed into North America from Africa and Asia during the Miocene, with the appearance of Ursavus (Schlosser, 1899), Indarctos (Pilgrim, 1913), and Agriotherium…
Craniodental indicators of prey size preference in the Felidae
In the present study, we used linear morphometrics of the crania, mandible and dentition to explore the association between craniodental shape and prey size among 35 species of living felids. To…
Radiographs Reveal Exceptional Forelimb Strength in the Sabertooth Cat, Smilodon fatalis
It is interpreted that Smilodon was a powerful predator that differed from extant felids in its greater ability to subdue prey using the forelimbs, and enhanced forelimb strength was part of an adaptive complex driven by the need to minimize the struggles of prey.
Sexual dimorphism and ontogenetic growth in the American lion and sabertoothed cat from Rancho La Brea
The results demonstrate that both Panthera species continue to grow into adulthood, strengthening the case that it is necessary to incorporate a measure of age into studies of sexual dimorphism in large carnivores, living or extinct.
Comparative Scaling of Humeral Cross-Sections of Felids and Canids Using Radiographic Images
- J. Meachen-Samuels
- Biology, Environmental ScienceJournal of Mammalian Evolution
- 9 March 2010
Radiographic measurements were found to be better predictors of body mass than either prey killing behavior or locomotor mode in these two carnivoran families.