The kind of twitter I can get on board with.

For a long time, we thought baby birds only made noise after hatching. But it turns out that they ‘speak’ while still inside their eggs. Unhatched chicks make two kinds of noises: peeps and clicks.

Samuel Henderson was four years old and eating Dippin’ Dots at the zoo when a great-tailed grackle caught his attention. He copied the bird’s call, and the bird answered him. Eight years later, the ...