Panda
The giant panda demonstrates what biologists diplomatically term extreme specialisation. Having evolved from omnivorous ancestors, pandas committed to a bamboo-exclusive diet that provides minimal nutritional value, requiring consumption of 12 to 38 kilograms daily merely to survive. Their digestive system remains fundamentally carnivorous, processing bamboo with efficiency rates below 20 percent. Climate change threatens their food source; habitat fragmentation limits genetic diversity; their reproductive reluctance compounds all difficulties. The panda represents evolutionary stubbornness elevated to conservation crisis.