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News
Tiny RNA Molecule Pushes Schistosome Parasites Toward Self-Destruction
1+ hour, 20+ min ago (73+ words) A single microRNA molecule may help determine whether the parasitic blood fluke Schistosoma japonicum thrives inside its host or succumbs to programmed cell death, according to a new study published in Acta Parasitologica. Researchers led by Yuanzhao Sun and Haoran…...
Collagen Switch Turns Fish Fins Into Limb-Like Structures
3+ hour, 17+ min ago (83+ words) When the first fish lineage crawled onto land some 375 million years ago, its fins had to be remodeled into limbs capable of bearing weight. Evolutionary biologists have long focused on the genes that pattern the skeleton—Hox clusters, Sonic hedgehog,…...
New Rust Toolkit Supercharges Sex Determination Studies in Non-Model
4+ hour, 27+ min ago (628+ words) A new open-source software package promises to transform how biologists hunt for the genetic switches that separate males from females in species with no reference genome....
Duplicated Energy Genes Reveal How Fish Mitochondria Evolved After Genome
8+ hour, 37+ min ago (620+ words) Every heartbeat, every twitch of a fin, and every dividing cell in a fish embryo depends on a molecular machine so ancient that its origins trace back billions of years. Oxidative phosphorylation, or OXPHOS, is the process by which cells…...
Baby Girls Look Longer at Faces Than Boys Within Hours of Birth, Study
10+ hour, 14+ min ago (710+ words) Within hours of drawing their first breath, newborn babies may already display one of the most quietly provocative differences in human psychology....
Bizarre squid relative found in Wyoming is unlike anything seen before
15+ hour, 35+ min ago (840+ words) A bizarre belemnite fossil from Wyoming has been identified as a new species, revealing the thickest known member of this ancient squid relative group. There’s a fossil in a Wyoming museum drawer that spent two decades being, essentially, a mystery…...
A genomic catalog of Earth’s bacterial and archaeal symbionts
1+ day, 2+ hour ago (918+ words) The assembly of a genomic catalog devoted specifically to bacterial and archaeal symbionts represents a meaningful shift in how large-scale microbiome resources are organized....
Teeth Reveal Four Adaptive Zones Shaping Carnivore Evolution
1+ day, 3+ hour ago (762+ words) For more than a century, paleontologists and evolutionary biologists have marveled at the way terrestrial mammalian carnivores keep reinventing the same body plans....
Ichthyosaurs Had Surprisingly Dense Ribs, New Study Finds | Sci.News
1+ day, 13+ hour ago (267+ words) New research from the Natural History Museum at the University of Oslo suggests ichthyosaurs’ rib cages may have done a job modern whale ribs don’t: acting as ballast to help them dive....
How Random Variation Drives the Emergence of Functional Segregation
1+ day, 5+ hour ago (85+ words) One of the most basic assumptions in neuroscience data analysis is quietly being overturned. A new study published in the journal Neuroinformatics shows that two groups of neurons can appear to divide their labor in the brain for no reason…...