Dark chocolate, milk chocolate, and white chocolate contain different amounts of toxic methylanthine alkaloids (eg, theobromine, theophylline, caffeine). With Halloween just around the corner, refresh your knowledge on chocolate toxicosis: https://mrkmnls.co/4gOkCH2 | The Merck Veterinary Manual

The oral LD50 in dogs of both caffeine and theobromine is reportedly 100–200 mg/kg, but severe clinical signs and death may occur at much lower doses, and individual susceptibility to methylxanthines varies. Try out our chocolate toxicity calculator: https://mrkmnls.co/4gFbbd7 | The Merck Veterinary Manual

Scent marking, enabling nearby and distant communication with other dogs, is a central feature of canine social communication. Dogs detect pheromones by wafting them into the vomeronasal organ with the tongue. Click here to learn more: https://mrkmnls.co/46DeRsR | The Merck Veterinary Manual

Although many mushrooms are edible and safe, some contain toxins that, on ingestion and absorption, result in mild to severe illness and even death. The mushroom species most frequently implicated in human and animal mushroom fatalities globally is Amanita phalloides. Learn more: https://mrkmnls.co/3NEq9To | The Merck Veterinary Manual

Many of the destructive behaviors of dogs, including chewing, stealing, garbage raiding, and digging, are normal exploratory behaviors that become destructive when the dog is unsupervised and not otherwise engaged in more desirable activities. Learn more: https://mrkmnls.co/3W9ICv3 | The Merck Veterinary Manual

The New World screwworm (NWS) is a fly that produces larvae that can cause a parasitic infestation in animals, including in livestock. Infestation in people is rare. The New World screwworm (NWS) fly was successfully eradicated from the United States and Mexico by the early 2000s through insect control methods. New outbreaks have occurred since 2022 in Panama, Costa Rica, and Mexico. Changes in climate and animal conditions may increase the chance that the NWS will continue to return to places w