Animals rattlesnake

Experience can further hone behaviors that are already present in naive animals. From 28 to 138 days of age, neonate rattlesnakes [Crotalus viridis and C. horridus) recognize and attack prey. They also show chemosensory searching and trailing. The initial trailing is Jerky and erratic, but after several feeding experiences becomes more methodical (Scudder etal., 1992). 

Scudder, K. M., Chiszar, D., and Smith, H. M. (1992). Strike-induced chemosensoiy searching and trailing behavior in neonatal rattlesnakes. Animal Behaviour 44, 574-576. 

According to a study by the Fish and Wildlife Service, Americans favorite animals are dogs, horses, swans, robins, and butterflies their least favorites are cockroaches, mosquitos, rats, wasps, and rattlesnakes. 

Twenty-three northern Pacific rattlesnakes Crotalus viridis oreganus) were used as the test animals. All individuals were housed in separate 10 gallon aquaria and kept on a 12h/12h l d cycle at 30°C. Water was provided ad libitum, and the aquaria were lined with newspaper. Prey items used during all experiments were Swiss-Webster mice obtained the day of the trial from a large breeding colony. 

Melcer, T., and Chiszar, D., 1989, Striking prey creates a specific chemical search image in rattlesnakes, Anim. Behav. 37 477-486. 

H. M., 1984, No social induction of chemosensory searching in rattlesnakes at National Zoo. Paper presented at meetings of the Animal Behavior Society, Eastern Washington University, Cheney, WA. 

Hemolytic anemia may be induced in domestic animals by copper, zinc, phenothi-azine, onions, TIcernibrum (red maple), Srassica species (rape e and forage), kale], saponin-containing plants, and rattlesnake or other pit viper venoms. 

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