Blog Post Image: Scientists Find Possible Solution to an Ancient Enigma

Postdoctoral investigator Anna McIntyre-Wressnig (left) and geobiologist Joan Bernhard of WHOI collecting mud samples near Shark Bay, Australia. Bernhard studies foraminifera in a variety of habitats, including oceanic sediments and stromatolites. (Photo by Virginia Edgcomb, Woods Hole Oceanographic Institution)