Related Experiment Video
Updated: Aug 16, 2026
06:00
Rearing Ixodes scapularis, the Black-legged Tick: Feeding Immature Stages on Mice
Published on: May 8, 2017
First report of a bite by the mottled rock rattlesnake (Crotalus lepidus lepidus)
1Department of Surgery, Division of Emergency Medicine, Stanford University Medical Center, Stanford, CA, USA. bob.norris@stanford.edu
Abstract:
Bites by the mottled rock rattlesnake (Crotalus lepidus lepidus) are rare. There appear to be no reports of bites by this subspecies in the literature. This is a case report of a bite by a captive specimen of this diminutive pit viper, and includes a review of what is known regarding its venom.
Related Concept Videos
01:26Rocky Mountain Spotted Fever
Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.
01:28Rabies
Rabies is a lethal zoonotic disease caused by a single-stranded, negative-sense RNA virus of the Lyssavirus genus, within the family Rhabdoviridae. Its primary mode of transmission to humans is through bites or saliva-contaminated scratches from infected mammals such as dogs, bats, raccoons, or foxes. Transmission can also occur if infectious saliva contacts abraded skin or intact mucous membranes, including the conjunctiva.Viral Entry and Early ReplicationOnce introduced at the bite or scratch...