The smell of hunger: Norway rats provision social partners based on odour cues of need - Fig 3 SchneebergerKarin RöderGregory TaborskyMichael 2020 <p><b>Principal component analysis of 27 biologically relevant olfactory compounds (a) and the 7 significantly different compounds (b) in the odour of hungry (orange/light) and satiated (purple/dark) rats (for raw data, see <a href="http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.3000628#pbio.3000628.s003" target="_blank">S2 Data</a>).</b> Ellipses mark Hotelling's T2 (95%). Dots are marked with individual IDs, with individuals with the same letter in the name being housed in the same group, and the numbers behind underscores depicting the sample sequence (_1 or _2).</p>