Hosts: Ed Brown, Dr. Shayne Joseph, Penny Dumsday, Lucas Randall.
Topics covered:
How the rock hyrax’s toilet habits left climate scientists a 55,000-year trail
Pretty Useful: Appendix Evolved More Than 30 Times
How to Repel an Earthquake
Gut Bacteria Conspired in Melamine Poisonings
Degraded microcosms: loss of oral biodiversity will kill you
Human Evolution: Gain Came with Pain
‘Vulcan’ leads Pluto moon name vote
A Yellow-spotted Rock Hyrax, living in Serengeti National Park, Tanzania.
It pees goop, and always in the same spot.
Image: Rieselsteinchen (WikiMedia Commons)
Download here. Duration: 0:37:11
My dentist tells me that my ‘rushed mad brushing before I go to work’ has caused an abrasion to the extent that I now have cavities.
As I’m rushing, apparently I brush in straight strokes, not gentle circles. As such the enamel on the root side of 3 of my teeth has a groove worn through it, caused by the brush and abrasive found in toothpaste.
Whilst brushing may be a good idea, over-zealous brushing can be a very bad thing.
Just my 2c
Thanks for the comment Hamish, that’s interesting. It seems there’s a trade-off between dirty, slimy teeth and clean, groovy white teeth with a low risk of http://scienceontop.com/wp-admin/post.php?post=1420&action=edit#comments-formcardiac explosion…