Around 60% of rain on land turns into evapotranspiration, but it's hard to accurately measure. This study looked at how evapotranspiration changed during a long drought in Victoria, Australia. They used different methods to see how well they could predict evapotranspiration during the drought. Surprisingly, they found that evapotranspiration stayed pretty constant even when there was less rain. This suggests that plants prioritize keeping water over making streamflow during a drought. The models they used didn't do as well at predicting evapotranspiration during the drought. This shows that we need better models to understand how evapotranspiration will change in the future as the climate gets drier.