Same temperature as white labs, or all labs for that matter. General rule - If its too cold for you its too cold for your dog
they can swim upside down in cold water to
SiNk
yes
no you can not swim in the Antarctica ocean because the water is very cold you can probally die swimming in the water because its so cold.
crazy.
In general, yes, black labs LOVE to swim. However, just like people, different dogs have different personalities, so it really varies dog to dog. (For instance, my black lab is terrified of the hose, will walk around in water, but hates to swim.)
Yes, it helps them swim in water. Labradors also have webbed feet.
Swim in cold water.
All people get hot when they exercise and cold when they swim in cold water, why should he be any different.
Actualy They live in both
If you are cold your body has a harder time trying to fight off infection. so if you swim in warm water then no, it will not get worse. however if you swim in cold water you may stay sick for longer. it would be rare for a cold to get worse though, just a longer duration.