Unlike past analyses of the pet industry, this study examined more than just dollars spent or wages that went directly into the pockets of workers. (petbusiness.com)
The truth is we do not know, although there are reasons to believe it is entirely possible, based on past analysis and accounts from other countries. (scientificamerican.com)
If oxygen isotopes are more different than previously thought, perhaps elements such as titanium and silicon, which in past analyses seemed to be identical in Earth and the Moon, also could have minute but noteworthy differences. (scientificamerican.com)