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

CapeTalk welcomes all comments that are constructive, contribute to discussions in a meaningful manner and take stories forward.

However, we will NOT condone the following:

  • Racism (including offensive comments based on ethnicity and nationality)
  • Sexism
  • Homophobia
  • Religious intolerance
  • Cyber bullying
  • Hate speech
  • Derogatory language
  • Comments inciting violence.

We ask that your comments remain relevant to the articles they appear on and do not include general banter or conversation as this dilutes the effectiveness of the comments section.

We strive to make the CapeTalk community a safe and welcoming space for all.

CapeTalk reserves the right to: 1) remove any comments that do not follow the above guidelines; and, 2) ban users who repeatedly infringe the rules.

Should you find any comments upsetting or offensive you can also flag them and we will assess it against our guidelines.

CapeTalk is constantly reviewing its comments policy in order to create an environment conducive to constructive conversations.

Read More
How to use your envy to your advantage (and why it's different from jealousy)

How to use your envy to your advantage (and why it's different from jealousy)

Behavioural psychologist Dr Helgo Schomer says envy has the potential to be constructive, if it is used as a tool for motivation.

Gordhan catching Minister Brown in the lies behind Molefe's return - analyst

Gordhan catching Minister Brown in the lies behind Molefe's return - analyst

ANC MP Pravin Gordhan grilled Minister Lynne Brown over Brian Molefe's re-appointment at Eskom saying several things don't add up.

"To maintain racist beliefs you often have to avoid reality"

"To maintain racist beliefs you often have to avoid reality"

American philosopher Lewis Gordon sat down with Eusebius McKaiser to dissect what racism and race denialism means.

Tips on how to do your best as a step parent

Tips on how to do your best as a step parent

Clinical psychologist Jeanie Cave says step parents have good intentions but are frustrated because their role is not clear.

Debate: Are monarchs outdated or still relevant?

Debate: Are monarchs outdated or still relevant?

Eusebius McKaiser holds a panel discussion on weather monarchs should be sponsored by the state in a democratic South Africa.

Roger Moore has died, age 89

Roger Moore has died, age 89

Listen to Roger Moore opening up to CapeTalk's Melanie Verwoerd about his life, acting and being James Bond.

Popular articles
Ruda Landman (fearless former Carte Blanche anchor) opens up about money

Ruda Landman (fearless former Carte Blanche anchor) opens up about money

The Money Show’s Bruce Whitfield interviews Landman about her attitude to money (hopes and fears, successes and failures, etc.).

Steam rooms and saunas will be closed from Wednesday at Virgin Actives in CT

Steam rooms and saunas will be closed from Wednesday at Virgin Actives in CT

The gym will be imposing strict measures to save and use water wisely across the city.

Emergency doctor says Henri van Breda's injuries were superficial

Emergency doctor says Henri van Breda's injuries were superficial

The wounds sustained by axe murder Henri van Breda continue to be scrutinised in court as the State calls another medical expert.

How Beaufort-West survived its worst drought in history

How Beaufort-West survived its worst drought in history

In light of the current drought in Cape Town, Kieno Kammies finds out what measures were used in Beaufort-West.

'Red Tie Guy'  who captured the world's attention during an Obama speech dies

'Red Tie Guy' who captured the world's attention during an Obama speech dies

Stellenbosch University's Goldfields Residence confirmed the news of Mikhail Hendricks death in a social media post on Friday.

3 emergency numbers you should have on speed dial and how they work

3 emergency numbers you should have on speed dial and how they work

These are the emergency numbers you should have on your cellphone and this is what you must understand about how they work.