Did you know that very large and giant breeds of dogs can start feeling the negative effects of warm weather when the temperature is as low as 65 degrees? This is according to the Tufts University Animal Care and Condition scales. And by the time temperatures rise to the mid-80s, virtually all dogs are affected by the heat. 

In this video, expert dog trainer and behavior specialist Robert Cabral talks about dogs and heat — and what to watch for to help your dog avoid heatstroke.