i suggest giving your dog a fresh bowl of water everyday to avoid dehydration. it would be harmful for a dog to go more than a day without water, especially since theyre smaller and need it more than we do. if you live in a hot, dry climate, your dog has a much higher risk and needs it at least in the next 9 hours, to avoid kidney infection.
They drown rather quickly as most have no idea how to hold their breath.
for a long time
depends
no one knows
Some durable dog chews that last a long time include bully sticks, antlers, and nylon bones.
I wouldn't try putting a dog under water and I don't know.
dog
63 days
About half a year
It can last as long as the people want it to, or until the dogs or the racers themselves die.
they can last up to 3 days in the water.
1 dog day = 7 human hours.ALL CREDIT TO Does_one_dog_day_equal_seven_human_days