beavers

[Paola Di Maio]

natural or artificial? 

bioengineered

I d say the beavers dam can come under  Bioengineering

(engineering using biological process)

/although different definitions, more or less narrow, are in use//

also,  hers an example of how easy it is to disrupt ecosystems rather innocently

http://www.cnbc.com/2016/03/17/when-doves-cry-funeral-wedding-craze-a-new-menace.html

i

PDM

 

On the San Pedro river in AZ, beavers were imported (they are native but had been decimated by another species).    Exemplary SE http://pubs.usgs.gov/of/2014/1121/

Steve Wallis <swa...@sbcglobal.net>: Mar 15 06:37AM -0700  That distinction between natural and artificial... is it natural or  artificial?