Results 41 to 50 of about 13,143 (213)
The Anatomical Record, EarlyView.Abstract The canine of saber‐toothed predators represents one of the most specialized dental structures known. Hypotheses about the function of hypertrophied canines range from display and conspecific interaction, soft food processing, to active prey acquisition.
Z. Jack Tseng
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The Anatomical Record, EarlyView.Abstract Saber‐tooths, extinct apex predators with long and blade‐like upper canines, have appeared iteratively at least five times in the evolutionary history of vertebrates. Although saber‐tooths exhibit a relatively diverse range of morphologies, it is widely accepted that all killed their prey using the same predatory behavior. In this study, we CT‐
Borja Figueirido +2 more
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The Anatomical Record, EarlyView.Abstract The evolution of organisms can be studied through the lens of developmental systems, as the timing of development of morphological features is an important aspect to consider when studying a phenotype. Such data can be challenging to obtain in fossil amniotes owing to the scarcity of their fossil record. However, the numerous remains of Rancho
Narimane Chatar +5 more
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Recovery of a marine keystone predator transforms terrestrial predator-prey dynamics. [PDF]
Proc Natl Acad Sci U S A, 2023 Roffler GH +3 more
europepmc +1 more source
Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin
The Anatomical Record, EarlyView.Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
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Shifts from cooperative to individual-based predation defense determine microbial predator-prey dynamics. [PDF]
ISME J, 2023 de la Cruz Barron M +5 more
europepmc +1 more source
The velar chord and dynamic integration of the gular valve in crocodylians
The Anatomical Record, EarlyView.Crocodilians have a unique gular valve that forms a seal between the oral cavity and the pharynx. The gular valve has traditionally been treated as two parts: a mobile ventral flap associated with the tongue and a fixed dorsal velum palatini. This work describes a connective tissue band, the velar chord, which functionally integrates the two parts of ...
Bruce A. Young +2 more
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Cumulative effects of widespread landscape change alter predator-prey dynamics. [PDF]
Sci Rep, 2022 Boucher NP +7 more
europepmc +1 more source
Cycles, chaos, and noise in predator–prey dynamics [PDF]
Chaos, Solitons & Fractals, 2001 In contrast to the single species models that were extensively studied in the 1970s and 1980s, predator–prey models give rise to long-period oscillations, and even systems with stable equilibria can display oscillatory transients with a regular frequency. Many fluctuating populations appear to be governed by such interactions.
openaire +3 more sources
The Anatomical Record, EarlyView.Abstract The Weberian apparatus is a hearing specialization unique to the otophysan fishes, and an unexpected degree of morphological variation exists in species of the Noturus catfishes. Our aim in this study is to investigate relationships between morphological variations and ecology that may drive this variation.
J. C. Hoeflich, Juan Liu
wiley +1 more source