Humans evolved from monkeys

[popeyespappy]

All modern flightless birds such as ostrich, emu, cassowary, rhea, kiwi and penguins are believed to be the descendants of birds that could fly. Their ancestors could fly, but these species lost the ability to fly during their evolution. There were earlier species of flightless birds whose MRCA with modern birds probably lived in the early Cretaceous. Those lineages all died out millions of years ago leaving only birds descended from a more recent common ancestor. That ancestor is believed to have all the characteristics common to modern birds such as feathers, a toothless beak and the attachment point for shoulder muscles required for a strong upward wing movement.