Two Australopithecus Species Co-Existed in Ethiopia 3.4 Million Years Ago
In 2009, paleoanthropologists found eight bones from the foot of an ancient human ancestor in 3.4-million-year-old sediments at…
Prenatal stress hormones may shape when a baby’s teeth erupt
A new birth cohort study reveals that a mother’s stress-related hormones in late pregnancy, especially cortisol, may quietly…
FDA restricts kids’ fluoride supplements over health risks
WASHINGTON (AP) — The Food and Drug Administration on Friday moved to limit the use of fluoride supplements used to strengthen children’s…
Fossil of Carnivorous ‘Swamp Monster’ Found in Brazil
Paleontologists have uncovered the fossilized lower right canine of a large proborhyaenid sparassodont in the Taubaté Basin of…
People with both cavities and gum disease may face higher ischemic stroke risk
People with both cavities and gum disease may face a higher risk of ischemic stroke, according to a…
Lead Exposure May Have Influenced Evolution of Human Brain, Behavior, and Development of Language
Several hominids — Australopithecus africanus, Paranthropus robustus, early Homo sp., Gigantopithecus blacki, Pongo sp., Papio sp., Homo neanderthalensis,…
Ancient lead exposure may have shaped human evolution and language
A groundbreaking international study changes the view that exposure to the toxic metal lead is largely a post-industrial…
310-Million-Year-Old Ray-Finned Fish Had Tongue-Bite Apparatus
Platysomus parvulus, a species of ray-finned fish that lived 310 million years ago, had a unique way of…
New Species of Extinct Octodontoid Rodent Discovered from Amazonian Fossil
Paleontologists have identified a new species of rodent in Acarechimys, an extinct genus with a widespread South American…
This Bizarre Fish Has 8 Rows of Forehead Teeth It Uses During Sex
Spotted ratfish are scaleless, rabbit-faced deep-sea fish, about two feet (61 centimeters) long, and native to the northeastern…
Unlocking the secrets of oral bacteria to fight tooth decay
If Wenjun Zhang has her way, no one will ever have to brush or floss again. Zhang, a…
Neolithic Cow Tooth Supports Welsh Origin of Stonehenge Stones
Archaeologists from University College London and elsewhere have examined a molar tooth of a female Bos taurus (cow)…