... pigs extirpate the rattlesnakes withimpunity?... 
J. Emerson Tennent 「Sketches of the Natural History of Ceylon」
...Also of special interest as a source of material for comparison of cottonmouths with other crotalids are the works of Fitch (1960) on the copperhead and of Klauber (1956) on the rattlesnakes...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
..."Other clues suggest that both Agkistrodon and Trimeresurus (Bothrops) moved from Asia to America, one of these presumably giving rise to the rattlesnakes...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...The behavior of the snakes during heating resembled those instances described by Klauber (1956:382-387) for rattlesnakes...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...This threat display is unique to cottonmouths; although it does not attract as much attention as the display of rattlesnakes, it is probably an effective warning to most intruders at close range...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Two instances of combat observed between timber rattlesnakes (C...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
... Several rattlesnakes that he tested showed a higher toxicity than copperheads or cottonmouths...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Grade IV (very severe) was added by McCollough and Gennaro (1963:961) to account for many bites of the eastern and western diamondback rattlesnakes...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Unusual defense postures assumed by rattlesnakes...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...The genus Neotoma largely coincides in its over-alldistribution with the genus Crotalus, of the rattlesnakes...
Henry S. Fitch 「Ecological Observations on the Woodrat, Neotoma floridana」
...For mostkinds of woodrats, the larger species of rattlesnakes are among thechief natural enemies...
Henry S. Fitch 「Ecological Observations on the Woodrat, Neotoma floridana」
...Stripedwhipsnakes, rattlesnakes and gopher snakes are known to occur in this vicinity(Douglas, 1966)...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...The draining of these marshes probably resulted in reducing thenumbers of these rattlesnakes...
William E. Duellman 「The Amphibians and Reptiles of Michoacán, México」
...The small montane rattlesnakes belonging to the species C...
William E. Duellman 「The Amphibians and Reptiles of Michoacán, México」
...On coming to the child, he found her busy at work feeding severalsnakes of the species of rattlesnakes called yellow heads...
Unknown 「Anecdotes of Animals」
...Among the figures shown on , it isnoteworthy that five of the rattlesnakes show no fangs...
Alfred M. Tozzer and Glover M. Allen 「Animal Figures in the Maya Codices」
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