Why are hollow bones are bad to have?

Hollow bones can be considered disadvantageous because they may compromise structural integrity, making them more susceptible to fractures and injury under stress. While they reduce weight and allow for greater mobility, in certain environments or activities that require strength and durability, hollow bones may not provide the necessary support. Additionally, their lighter nature might limit the ability to store minerals and other essential resources. Ultimately, the trade-off between weight and strength can be unfavorable depending on the species and its ecological niche.