Why are dogs' noses always cold? The Naked Scientist explains this and more...

The Naked Scientist will make sense of why things are as they are by sharing the science behind any questions you have.

On today's edition of his feature on The Redi Tlhabi Show, he answered a broad range of questions about dogs, cats, and much more.

702/Cape Talk's #FridayStandIn, Mark Solms, spoke to The Naked Scientist (real name Chris Smith) as he answered questions from callers on the science of it all.

Listen to the conversation below:

In a question from Ross in Thornton (Cape Town), he asked for an explanation on why warm-blooded animals (such as dogs) have cold noses and why dogs wag their tails when they're happy.

Their noses are very long and as a result they tend to have certain air-flow in the nose so they can detect chemicals more effectively.

Chris Smith, popularly known as The Naked Scientist
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