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10.3 Animal Liability

2 min readjuly 23, 2024

Animal liability rules are crucial in tort law, determining when owners are responsible for harm caused by their pets or . These rules vary based on the animal type and jurisdiction, balancing public safety with pet ownership rights.

Understanding these rules is essential for pet owners and potential plaintiffs. From for wild animals to the 'one-bite' rule for domestic pets, these regulations shape how courts handle animal-related injuries and damages.

Animal Liability Rules

Types of animal liability rules

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  • Liability rules for animals depend on the classification of the animal
    • Wild animals not commonly domesticated or tamed (lions, tigers, bears, venomous snakes)
    • Domestic animals commonly kept as pets or livestock (dogs, cats, horses, cattle)

Strict liability for wild animals

  • Owners liable for any harm caused by their wild animals, regardless of fault or
  • Wild animals inherently dangerous and unpredictable
  • Exceptions to strict liability for wild animals
    • Plaintiff's reduces or eliminates owner's liability if plaintiff's own negligence contributed to the injury
    • may negate owner's liability if plaintiff voluntarily and knowingly assumed the risk of injury
    • Trespass may negate owner's liability if plaintiff was trespassing on the owner's property when the injury occurred

Domestic animal liability rules

  • Negligence rule for domestic animals
    • Owners liable for harm caused by their domestic animals if they fail to exercise reasonable care
    • Reasonable care depends on circumstances, such as the animal's history and the owner's knowledge of its propensities
  • 'One-bite' rule in some jurisdictions
    • Owners not liable for their domestic animal's first bite or attack, unless they had prior knowledge of the animal's dangerous propensities
    • After the first incident, owner considered to have knowledge and subject to the negligence rule
  • Strict liability for abnormally dangerous domestic animals in some jurisdictions
    • Strict liability imposed for domestic animals known to be abnormally dangerous (certain breeds of dogs with a history of aggression)

Application of animal liability rules

  • Identify the type of animal involved (wild or domestic)
  • Consider the jurisdiction's specific rules
    1. Strict liability for wild animals
    2. Negligence or 'one-bite' rule for domestic animals
    3. Strict liability for abnormally dangerous domestic animals
  • Evaluate the owner's knowledge and actions
    • Did the owner have prior knowledge of the animal's dangerous propensities?
    • Did the owner take reasonable precautions to prevent harm?
  • Assess any exceptions or defenses
    • Contributory negligence
    • Assumption of risk
    • Trespass
  • Apply the appropriate liability rule based on the facts of the case
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© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.

© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
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