Prying into the intimate details of animal lives: use of a daily diary on animals

This paper introduced the daily diary concept, a multi-sensor logger recording tri-axial acceleration, magnetometry, and environmental variables at high frequency to reconstruct an animal's behavior and fine-scale movement. Wilson and colleagues argued that such devices could move biologging beyond simple location tracking toward a near-continuous record of what an animal does, where its body is oriented, and how much energy it expends. They demonstrated dead-reckoning, in which heading, speed, and acceleration are integrated to reconstruct a detailed path between sparse GPS fixes. The framework underpins much of modern accelerometer-based behavioral classification, including in felids. Its lasting influence is the idea that dense, body-mounted sensing can render an animal's hidden daily life observable in extraordinary detail.