1. Some dismiss these primitive features as recent mutations rather than atavisms . 2. Such a re-emerged trait is called an atavism . 3. Painting faces and tearing down goal posts was always seen as healthy atavism . 4. The presence of these kind of vestigial structures is known as an atavism . 5. This is the first recorded instance of this form of atavism in the blackfin flounder. 6. It is a case of atavism ." 7. Atavisms can occur in several ways.8. Biologists propose that the reason atavisms exist at all is nature's propensity for recycling old ideas. 9. The notion of atavism was used frequently by progress, as development towards greater complexity and superior ability. 10. Instead he found on the nestlings'thighs " a series of permanent feathers, and no atavism .
