Researchers Visualize Heart From 380-Million-Year-Old Fish
A team of researchers in Australia have imaged fossilized soft organs of early jawed vertebrates for the first time, finding that our ancient fish ancestors’ hearts, livers, and stomachs are strikingly similar to ours.
Researchers Visualize Heart From 380-Million-Year-Old Fish
Researchers Visualize Heart From 380-Million-Year-Old Fish
A team of researchers in Australia have imaged fossilized soft organs of early jawed vertebrates for the first time, finding that our ancient fish ancestors’ hearts, livers, and stomachs are strikingly similar to ours.
A team of researchers in Australia have imaged fossilized soft organs of early jawed vertebrates for the first time, finding that our ancient fish ancestors’ hearts, livers, and stomachs are strikingly similar to ours.
Fossil findings shed light on a little-known group of Cretaceous-era beasts—and indicate that the combination of a large head and diminutive arms was no evolutionary fluke.
A fossil analysis suggests that the yunnanozoan, a wormlike fish that flourished around 520 million years ago, sported structures that were the precursors of the head and jaws of modern vertebrates.
A newer dating technique using cosmogenic isotopes finds Australopithecus remains from the Sterkfontein caves to be about 1 million years older than previous estimates, potentially changing scientists’ understanding of humanity’s origins.
An analysis of skull and vertebrae fossils suggests that an early relative of giraffes butted heads to compete for mates, which may reveal why modern giraffes are so throaty.
Archaeologist and paleontologist Juan Carlos Cisneros tells The Scientist that researchers frequently fail to involve local groups—and sometimes violate laws—when studying Latin American fossils.
A massive, well-preserved skull discovered in China in the 1930s belongs to a new species called Homo longi, researchers report, but experts remain skeptical about the evidence.
A paleontologist at the National Museums of Kenya is spearheading an effort to make 3-D reconstructions of the institution’s fossils available internationally.
The astronomical idea doesn’t align well with the fossil record, anthropologists argue, but the origins of bipedalism are still difficult to determine.
The Smithsonian National Museum of Natural History paleobiologist also studies the evolution of echolocation and special sensory structures in modern whales.