Over 500 million years ago, a taco-shaped marine organism named Odaraia swam up from the bottom of the ocean and up into the water itself. Despite being only about 7.8 inches long, the journey that Odaraia undertook was a pretty big deal for the evolution of some of our planet’s most prevalent animals. A new... read full story
"Odaraia had been beautifully described in the 1980s, but given the limited number of fossils at that time and its bizarre shape, two important questions had remained unanswered: is it really a mandibulate? And what was it feeding on?"