Immunoglobulin genes might have evolved much earlier than previously expected, perhaps even in the common ancestor of Cnidarians and Bilateria, a study suggests.
Contrary to what researchers had assumed, Egyptian fruit bats don’t rely solely on sight to orient themselves as they drink and forage for food in daylight.
Harvesting lab-raised zebrafish based on their size led to differences in the activity of more than 4,000 genes, as well as changes in allele frequencies of those genes, in the fish that remained.
From fish harvests to cottonwood forests, organisms display evidence that species change can occur on timescales that can influence ecological processes.
Jennifer A. Schweitzer, Mark A. Genung, and Joseph K. Bailey | Sep 1, 2014 | 10+ min read
In addition to serving as a set of instructions to build an individual, the genome can influence neighboring organisms and, potentially, entire ecosystems.
Conservationists are reintroducing large animals to areas they once roamed, providing ecologists with the chance to assess whether such “rewilding” efforts can restore lost ecosystems.