User:Abyssal/Prehistory of South America/DYK/7
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/9a/David_Tab_Rasmussen_-_Wash_Univ%2C_St._Louis_2006_%28cropped%29.jpg/91px-David_Tab_Rasmussen_-_Wash_Univ%2C_St._Louis_2006_%28cropped%29.jpg)
- ... that biological anthropologist David Tab Rasmussen enjoyed working in the Neotropics because it allowed him to study both primates and birds, his two favorite subjects?
- ... that the extinct bivalve subfamily Praenuculinae can be told apart from its sister subfamily by looking at teeth?
- ... that when first described, the extinct bird Cruschedula was thought to be a "dry-land" penguin?
- ... that archeologist Anna Curtenius Roosevelt, the great-granddaughter of Theodore Roosevelt, described a pre-Columbian civilization in Brazil as having "outstanding indigenous cultural achievements"?
- ... that in the Geological Observations on the Volcanic Islands, naturalist Charles Darwin presents one of the earliest accounts of the process of magmatic differentiation?