see more

Archaeopteryx - the first bird, 1886. Artist's reconstruction of an archaeopteryx, which made its appearance about 170 million years ago, based on fossil records. (Photo by Ann Ronan Pictures/Print Collector/Getty Images)

Archaeopteryx - the first bird, 1886. Artist's reconstruction of an archaeopteryx, which made its appearance about 170 million years ago, based on fossil records. (Photo by Ann Ronan Pictures/Print Collector/Getty Images)