05/29/2026
Many species of birds run a bit hotter than we do. That’s because they have high metabolic rates due to flight being the most energetically taxing of all activities in the animal kingdom. Their basal metabolic rate is higher than mammals to fuel the demand for oxygen and power. Further, their feathers are extremely good at insulation- it’s likely the reason why feathers evolved in the first place. When they need to warm up, they are extremely good at shivering: their pectoral muscles can take up to 40% of their body weight!
I’m more like a little lizard. Put me in all black clothes in parking lot at 85 degrees and I’m finally comfortable. 🥶