Which animal can regrow its head and brain? And believe me, the answer is not "none"!
Answer: CHECK TOMMOROW
Pigeons feed milk to their babies. How in the world do they do that? Here is how it works -- Birds store food in their crop. The crop of a bird is a little bag located near the belly in its esophagus. The esophagus is the food pipe that transfers food from your mouth to your belly. But, their is something fascinating about a pigeons crop. It stores food AND milk in it! Plus, if mom's not around, dad can also feed milk to the hungry squabs (baby pigeons). And, did you know that not only pigeons, but doves, male Emperor penguins, and flamingos all feed milk to their babies!