Why is a dog's nose always wet?

Loading player...
Dr Chris answers science questions from listeners to TalkRadio 702, including; How does one improve short term memory, especially following a brain injury? Can retinal microchip implants cure blindess? What are the health impacts of artificial sweeteners? Like this podcast? Please help us by supporting the Naked Scientists
2 Mar 2025 English United Kingdom Science

Other recent episodes

What colour is a mirror?

Why some people can't say their Rs; why is perception of time so context dependent; what's the nutritional value of long life milk; what determines how tall we are; why do some mirrors make you look a strange shape; why to take care with magnesium supplements to avoid explosive diarrhoea;…
27 Mar 21 min

Do we all see colours the same way?

On this week's show, why dogs don't live as long as humans. Also, why do we feel cold when our skin is warm to the touch? Do we all see colours the same way? Do animals experience embarrassment? If photons head towards two small slits, do they only pass through…
13 Mar 23 min

Can white skin transplanted to a black person change colour?

This week Clarence Ford and Dr Chris discuss NASA's DART mission to defect an asteroid, why we can't tickle ourselves, whether lung capacity affects the heart, if white skin transplanted to a black person changes colour, why some people are more ticklish than others, how scientists are able to read…
6 Mar 22 min

Why do we get a falling sensation as we drift off to sleep?

This week, Dr Chris Smith and Sara Jayne Makwala King get to the bottom of IBS, why women living together often synchronise menstrual cycles, why we get a sudden falling sensation when dropping off to sleep sometimes, and if Earth suddenly stopped spinning, what would happen first? Also, are the…
27 Feb 19 min

Is there an evolutionary advantage of golf?

In this week's show, how scientists discover Russia's use of frog neurotoxin epibatidine to kill political opponent Alexei Navalny, why some people are more vulnerable to dental problems, why does a full bladder make me feel sick, how is gum disease linked to heart disease, where do the clouds surrounding…
20 Feb 19 min