In these cases, the tumor is first suspected based on chest X-rays taken by your veterinarian for a completely different reason. (cvm.ncsu.edu)
The fossil depicts the most primitive bird documented so far, though maybe not the oldest, as first suspected. (discovermagazine.com)
All evidence points to something in the heroin drug users are pumping into their bodies, and investigators at first suspected anthrax, a well - known livestock pathogen and potential biological weapon. (sciencemag.org)