Ants are known as hard workers, tirelessly attending to their assigned tasks—foraging for food, nurturing larvae, digging tunnels, tidying the nest. But in truth, some are total layabouts. Called workerless social parasites, ...
Evolution
Mar 3, 2023
0
148
Scientists from Denmark and China have estimated germline mutation rates across vertebrates by sequencing and comparing genetic samples from 151 mother, father, and offspring trios from 68 species of mammals, fishes, birds ...
It was just a tooth and a fragment of jaw bone—discovered in an excavation layer of the Chorrillo Formation, a unique geological formation in Patagonia, Argentina. Field researchers found it amongst fossils of both terrestrial ...
The meat-eating dinosaurs known as theropods that roamed the ancient Earth ranged in size from the bus-sized T. rex to the smaller, dog-sized Velociraptor. Scientists puzzling over how such wildly different dinosaur sizes ...
Evolution
Feb 23, 2023
0
166
A team of virologists at Aix–Marseille University, has found evidence that suggests the giant virus Pandoravirus neocaledonia evolved from smaller and simpler viruses. In their study, published in the journal Nature Communications, ...
The CT-scanned skull of a 319-million-year-old fossilized fish, pulled from a coal mine in England more than a century ago, has revealed the oldest example of a well-preserved vertebrate brain.
Evolution
Feb 1, 2023
0
198
Humans retain an understanding of gestures made by other great apes, even though we no longer use them ourselves, according to a study by Kirsty E. Graham and Catherine Hobaiter at the University of St Andrews, Scotland, ...
Plants & Animals
Jan 24, 2023
12
2498
Our genes are encoded in the DNA sequence of the genome, which is highly similar across the diverse cell types of our body. Yet, each cell can only access those genes that are in an epigenetically permissive state. The epigenome ...
Evolution
Jan 18, 2023
2
84
Humans and chimpanzees differ in only one percent of their DNA. Human accelerated regions (HARs) are parts of the genome with an unexpected amount of these differences. HARs were stable in mammals for millennia but quickly ...
Evolution
Jan 13, 2023
8
387
In the 1950s, the geneticist J.B.S. Haldane attributed the maintenance or persistence of the mutation responsible for anomalies in red blood cells commonly observed in Africa to the protection these anomalies provided against ...
Evolution
Jan 13, 2023
0
102
