Will a young black bear get sick if it ate mouse poison?

Yes, a young black bear could become seriously ill if it ingests mouse poison. Many rodenticides contain anticoagulants or neurotoxins that can cause severe health issues, including internal bleeding or neurological damage. The size and health of the bear, along with the amount of poison consumed, would influence the severity of the effects. If a bear is suspected of ingesting poison, it is crucial to seek assistance from wildlife authorities or veterinarians.