A petite and exquisitely preserved 50-million-year old fossil reveals the remains of a lustrous black bird that was the precursor to today’s hummingbirds, researchers say. The fossil bird, originally excavated…
Read MoreA petite and exquisitely preserved 50-million-year old fossil reveals the remains of a lustrous black bird that was the precursor to today’s hummingbirds, researchers say. The fossil bird, originally excavated…
Read More