Re: Backing track creation with LilyPond

[Karlin High]

On 2/14/2018 4:34 AM, David Kastrup wrote:
> The mice were running around openly and rather visibly before that.
> Already when the cats were confined to one stable cell, the difference
> was staggering.  When they roamed freely, it was overwhelming.  They
> couldn't have caught hundreds of mice in that time frame: it's just that
> the visibility of the rodents dropped by wagonloads.

http://www.laweekly.com/news/instead-of-being-put-down-these-feral-cats-are-being-put-to-work-8963106

<quote>

Cats are a natural rodent deterrent, even if they're not actively 
hunting. Mice can smell urinary proteins secreted by cats, snakes and 
other predators. According to a 2010 study at the Scripps Research 
Institute, mice don't recognize predators because of experiences with 
them but because they have evolved to do so. The mere scent of the 
urinary proteins found in cats triggers a fear response in mice.

"It's not like they're even going after the rodents," Sathe says of the 
cats. "They're kind of like a sonic force."

<end quote>

--
Karlin High
Missouri, USA