That makes it even stranger that
only modern birds got them right for flight.
Not exact matches
Archaeopteryx remains the oldest known
bird fossil, not
only documenting the evolutionary transition from reptiles to
birds, but also confirming that
modern birds are the direct descendants of carnivorous dinosaurs.
Human activities could change the pace of evolution, similar to what occurred 66 million years ago when a giant asteroid wiped out the dinosaurs, leaving
modern birds as their
only descendants.
Why
only some of them survived to become
modern - day
birds remains a mystery.
Modern birds, long thought to have arisen
only after the dinosaurs perished, turn out to have lived alongside them
Not
only does the
bird look nearly
modern, but it was apparently a water dweller, showing that «ancient
birds became specialized in their respective habits» very early, says paleontologist Luis Chiappe of the Natural History Museum of Los Angeles County in California.
It's weird because
birds living at the same time elsewhere in the world are
only distantly related to
modern birds (they had teeth, may have been fairly poor fliers, etc).