Why don't Animals Crossbreed?

Loading player...
Can we eliminate flies and mosquitoes from our ecosystem and live in peace? When will the universe end? Do eggs with double yolks mean that two twins would have been born? Why don't animals such as lions and zebras cross-breed? Why is it best for women to have babies when they are younger? Does the direction that the water goes down a plug-hole change if you are in the Northern or Southern hemisphere? Is it possible to overcome a fear? Plus, news of a new discovery that bugs in your gut may be able to keep you healthier at old age. Chris Smith answers your questions with Eusebius McKaiser on South Africa's Talk Radio 702...
24 Aug 2017 English United Kingdom Science

Other recent episodes

Why don't melting ice cubes make my drink overflow?

How does polio cause disease? Why does ice added to a drink not make the glass overflow when the ice melts? What's the point of the appendix? Is old poison, past its expiry date, still toxic? What techniques built the pyramids? How do we treat hypotension? Why do our brains…
24 Apr 21 min

Do dogs dream?

Do dogs dream? Can someone who was born blind dream? Do animals have souls? Do certain eye colours have more advantages than others in terms of sight? What is blind sight? What are growing pains? Is it unhealthy to sleep with closed windows? And what is some advice for sleepwalkers?…
17 Apr 22 min

What caused the craters on the Moon?

How does the heat shield protect the Artemis II astronauts on their return to Earth? What caused the craters on the Moon? Can the materials in cooking pots cause poisoning? What is seasickness? Can space missions take place during periods of high solar activity? And what propels spacecraft? Dr Chris…
10 Apr 22 min

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