observational
Different Alcoholic Drinks Tied to Different Moods
Different Alcoholic Drinks Tied to Different Moods
Catherine Offord | Nov 22, 2017
An online survey finds that people report feeling most relaxed with a glass of red wine or beer, and most aggressive when drinking spirits.
Human Presence Influences Chimps’ Hunting Habits
Human Presence Influences Chimps’ Hunting Habits
Diana Kwon | Jun 26, 2017
Researchers find differences in predatory behavior between a long-observed chimp tribe and a recently habituated one. 
Opinion: Biased Observers of Nature
Gordon M. Burghardt and Todd M. Freeberg | Jul 9, 2012
Potential biases in scientific data collection and analysis should be minimized.