The birdlike raptor Sinornithosaurus was venomous

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The birdlike raptor Sinornithosaurus was venomous.

We suggest that some of the most avian dromaeosaurs, such as Sinornithosaurus, were venomous, and propose an ecological model for that taxon based on its unusual dentition and other cranial features including grooved teeth, a possible pocket for venom glands, and a groove leading from that pocket to the exposed bases of the teeth. These features are all analogous to the venomous morphology of l...

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Venomous animals account for considerable morbidity and mortality worldwide. Snakes alone are estimated to inflict 2.5 million venomous bites annually, with approximately 125,000 deaths. The actual numbers may be much larger. Southeast Asia, India, Brazil, and areas of Africa lead the world in snakebite mortality. It is impossible to estimate the worldwide morbidity and mortality resulting from...

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The Venomous Ophidians of Colombia, South America

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A Venomous Bite

As to the evidence of some venomous bite, a faint patch of the ecchymosis was seen mentioned in the accompanying report of the police, just on the inner side of the left anklejoint (about the internal inaleolus). This site of injury was cleansed, and haying failed to observe anything like the ecchymosis, I cut into the said part, which also did not reveal any extravasation of blood thereabout. ...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 2009

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.0912360107