Why ostrich and penguin can not fly 

Asked by vishwadiprathod0070.9sdatl | 10th Jun, 2020, 03:52: PM

Expert Answer:

Ostriches cannot fly due to their massive weight.
In the process of evolution, the penguins hollow bones became solid and heavy so they could no longer lift themselves out of the water to fly. Their heavier bones made is easier for them to dive down into the water.

Answered by Sheetal Kolte | 10th Jun, 2020, 07:12: PM