Letters to the Editor

18904

In regards to “Dinosaur fossil yields feathery structures,” the scattered feathery structures may have belonged to an antecedent of Archaeopteryx but not necessarily a Sinornithosaurus. Given the context and location of the fossils, it seems more likely they belonged to the raptor’s last meal before its untimely demise. Aaron Stough Roanoke, Va.

18903

One can question the basic assumptions of the people doing the study described in “Sedentary off-hours link to Alzheimer’s.” One would hope that going to church is not less an intellectual endeavor than others, though it may be less physical than knitting or gardening. Even TV can be intellectual if viewers are testing their ability […]

18918

Finally, scientists are exploring the nature of religious experiences.