نتایج جستجو برای: venomous spine

تعداد نتایج: 53526  

Journal: :Natural and engineering sciences 2022

Lionfishes are recognized as invasive and predatory species in the world. The genus Pterois belongs to Scorpaenidae family has 10 confirmed species. Among them, two miles P. volitans were reported non-indigenous Turkish marine waters. Although dorsal, pelvic, anal fins of lionfish have venom-releasing spines which can systemic effects such severe pain, fever, vomiting, dizziness, there no repor...

Journal: :Toxicon : official journal of the International Society on Toxinology 2006
David Williams Wolfgang Wüster Bryan Grieg Fry

The Australian snake fauna is unique in harbouring more venomous species than non-venomous ones. Although taxonomic research on the elapid snakes of Australia goes back to the late 18th century, in stark contrast to other developed regions of the world (e.g. the continental USA), Australian snake taxonomy is very much in its infancy. Despite this, or perhaps because of this, the taxonomy of Aus...

Journal: :The Onderstepoort journal of veterinary research 2001
R S Blaylock

Eighteen snakes representing 11 species were subject to mouth swabbing on 58 occasions. Of these swabs, 52.2% were positive for bacteria. A total of 92 bacterial isolates were cultured, representing 30 species of which 81.5% were Enterobacteriaceae, 16.3% gram positive cocci, and 2.2% anaerobes. Swabs from non-venomous snakes were more commonly bacteriologically sterile than those from venomous...

2012
Rachel B. Currier Juan J. Calvete Libia Sanz Robert A. Harrison Paul D. Rowley Simon C. Wagstaff

Venom is a critical evolutionary innovation enabling venomous snakes to become successful limbless predators; it is therefore vital that venomous snakes possess a highly efficient venom production and delivery system to maintain their predatory arsenal. Here, we exploit the unusual stability of messenger RNA in venom to conduct, for the first time, quantitative PCR to characterise the dynamics ...

Journal: :Wilderness & Environmental Medicine 2001

Journal: :Scientific American 1913

Journal: :Emergency Medicine Journal 2002

Journal: :Proceedings. Biological sciences 2004
Wolfgang Wüster Christopher S E Allum I Birta Bjargardóttir Kimberley L Bailey Karen J Dawson Jamel Guenioui John Lewis Joe McGurk Alix G Moore Martti Niskanen Christopher P Pollard

Predator avoidance of noxious prey, aposematism and defensive mimicry are normally associated with bright, contrasting patterns and colours. However, noxious prey may be unable to evolve conspicuous coloration because of other selective constraints, such as the need to be inconspicuous to their own prey or to specialist predators. Many venomous snakes, particularly most vipers, display patterns...

Journal: :Biology letters 2016
David A Penning Baxter Sawvel Brad R Moon

To survive, organisms must avoid predation and acquire nutrients and energy. Sensory systems must correctly differentiate between potential predators and prey, and elicit behaviours that adjust distances accordingly. For snakes, strikes can serve both purposes. Vipers are thought to have the fastest strikes among snakes. However, strike performance has been measured in very few species, especia...

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