News & Events
Frog fungus fights back
Jul. 20, 2019—Amphibian populations have been declining around the world for more than 40 years. One culprit is the fungus B. dendrobatidis, which causes the disease chytridiomycosis. Although amphibians have robust immune defenses, the response to this pathogen is often ineffective, suggesting that the fungus somehow counters the immune response. Evolution@Vanderbilt member Louise Rollins-Smith, Professor of Pathology,...
Dolphin ancestor’s hearing was more like hoofed mammals than today’s sea creatures
Jul. 19, 2019—Evolution@Vanderbilt paleontologists Rachel A. Racicot, visiting scholar, and Simon A.F. Darroch, Assistant Professor of Earth and Environmental Sciences, and their collaborators are looking into the evolutionary origins of the whistles and squeaks that dolphins and porpoises make – part of the rare echolocation ability that allows them to effectively navigate their dark environment. The study...
Ediacaran dinner party featured plenty to eat, adequate sanitation, computer model shows
Jul. 18, 2019—Earth’s first dinner party wasn’t impressive, just a bunch of soft-bodied Ediacaran organisms sunk into sediment on the ocean floor, sharing in scraps of organic matter suspended in the water around them. But work from Evolution@Vanderbilt paleontologist Simon A.F. Darroch, assistant professor of earth and environmental sciences at Vanderbilt University, and Brandt M. Gibson, a...
Life in evolution’s fast lane
May. 24, 2019—Most living things have a suite of genes dedicated to repairing their DNA, limiting the rate at which their genomes change through time. But recent work by graduate student Jacob L. Steenwyk in the lab of Antonis Rokas, Evolution@Vanderbilt director, and their collaborators at the University of Wisconsin-Madison reports the discovery of an ancient lineage...