Natural selection uses duplicated genes as raw material for functional innovation, co-opting their existing features to new functions. Understanding genetic innovation requires two questions to be ...

Dementia refers to a decline in cognitive functions like memory and reasoning. Alzheimer’s, the most common type, is marked by a progressive decline in memory, language, and thought. Symptoms of ...

Andrew Bloomenthal has 20+ years of editorial experience as a financial journalist and as a financial services marketing writer. Erika Rasure is globally-recognized as a leading consumer economics ...

Pansexual means you can be attracted to people of all genders, including those who don’t identify with any gender. Many pansexual people describe attraction based on personality rather than gender.