_:n9a233d1997734f8aa72815052b2e3830xb0
<http://schema.org/thumbnailUrl>
<https://cdn.mos.cms.futurecdn.net/Pt5RUCTs8C4uXN3w9ZdRjP-320-80.jpg>
<https://www.livescience.com/mystery-california-seabed-pockmarks.html>