Globally, people get animal protein mostly from chickens, with pigs and cattle in second and third place. A 2023 report ...

Pig heart valves have been used as replacements in humans since the 1960s, but in those cases, the tissue is chemically treated to kill off the cells including the alpha-gal sugar. Presumably ...

The guinea pig has long been used for studies in developmental biology and is very similar to humans in terms of general physiology. It is also the only small animal that, in females, goes through ...