Results 331 to 340 of about 151,557 (376)
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Body sizes and diversification rates of lizards, snakes, amphisbaenians and the tuatara
Global Ecology and Biogeography, 2016Aim Size is one of the most important and obvious traits of an organism. Both small and large sizes have adaptive advantages and disadvantages. Body size–frequency distributions of most large clades are unimodal and right skewed. Species larger than the
Itay Mayrose +2 more
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Coral snakes predict the evolution of mimicry across New World snakes
Nature Communications, 2016 Batesian mimicry, in which harmless species (mimics) deter predators by deceitfully imitating the warning signals of noxious species (models), generates striking cases of phenotypic convergence that are classic examples of evolution by natural selection.
Alison R Davis Rabosky +2 more
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Region Competition: Unifying Snakes, Region Growing, and Bayes/MDL for Multiband Image Segmentation
IEEE Transactions on Pattern Analysis and Machine Intelligence, 1996We present a novel statistical and variational approach to image segmentation based on a new algorithm, named region competition. This algorithm is derived by minimizing a generalized Bayes/minimum description length (MDL) criterion using the variational
Song-Chun Zhu, A. Yuille
semanticscholar +1 more source
South American Journal of Herpetology, 2019
. Accurate and detailed species distribution maps are fundamental for documenting and interpreting biological diversity. For snakes, an ecologically diverse group of reptiles, syntheses and detailed data on distribution patterns remain scarce. We present
C. Nogueira +31 more
semanticscholar +1 more source
. Accurate and detailed species distribution maps are fundamental for documenting and interpreting biological diversity. For snakes, an ecologically diverse group of reptiles, syntheses and detailed data on distribution patterns remain scarce. We present
C. Nogueira +31 more
semanticscholar +1 more source
Nature Communications, 2015 The previous oldest known fossil snakes date from ~100 million year old sediments (Upper Cretaceous) and are both morphologically and phylogenetically diverse, indicating that snakes underwent a much earlier origin and adaptive radiation.
Michael W Caldwell +2 more
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T-snakes: Topology adaptive snakes
Medical Image Analysis, 2000We present a new class of deformable contours (snakes) and apply them to the segmentation of medical images. Our snakes are defined in terms of an affine cell image decomposition (ACID). The 'snakes in ACID' framework significantly extends conventional snakes, enabling topological flexibility among other features. The resulting topology adaptive snakes,
Demetri Terzopoulos, Tim McInerney
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Snakes in Suits: When Psychopaths Go to Work
, 2015"Snakes in Suits" is a compelling, frightening, and scientifically sound look at exactly how psychopaths work in the corporate environment: what kind of companies attract them, how they negotiate the hiring process, and how they function day by day.
P. Babiak, R. Hare
semanticscholar +1 more source
IEEE Transactions on Image Processing, 2007 Active contours, or so-called snakes, require some parameters to determine the form of the external force or to adjust the tradeoff between the internal forces and the external forces acting on the active contour. However, the optimal values of these parameters cannot be easily identified in a general sense.
Umut Ozertem, Deniz Erdogmus
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BMC Evolutionary Biology, 2015 The highly derived morphology and astounding diversity of snakes has long inspired debate regarding the ecological and evolutionary origin of both the snake total-group (Pan-Serpentes) and crown snakes (Serpentes).
Allison Y Hsiang +2 more
exaly +2 more sources
Clinical Techniques in Small Animal Practice, 2006
North American coral snakes are distinctively colored beginning with a black snout and an alternating pattern of black, yellow, and red. They have fixed front fangs and a poorly developed system for venom delivery, requiring a chewing action to inject the venom.
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North American coral snakes are distinctively colored beginning with a black snout and an alternating pattern of black, yellow, and red. They have fixed front fangs and a poorly developed system for venom delivery, requiring a chewing action to inject the venom.
openaire +3 more sources