Assertion: rat | /r/HasProperty | bred
Facets:
value: selectively
type: MANNER
Source sentences:
text: Experiments done in the 1920s showed that some rats performed better than others in maze tests, and if these rats were selectively bred, their offspring also performed better, suggesting that in rats an ability to learn was heritable in some way.
text: Producers had to ensure that all the rats would be disease free and let their animal handlers know months in advance about the scene, so the rats could be breed to meet the production demands.