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A recently discovered fossilized worm from 535 million years ago had an armored body, a mouth ringed with teeth and rows of thornlike spines on its flanks.
With circles of spiky teeth, articulated armored plates and sharp spines, the 2mm-long Eokinorhynchus rarus, lived in China 535 million years ago. It’s related to modern insects, spiders, crustaceans and roundworms.
Despite the naysayers, plastics recycling is actually profitable, and widespread.
Progesterone supplements do not lower the risk of miscarriage in women who have suffered from repeated miscarriages in the past, a new study finds.
Sometimes, the only sign of a serious cardiovascular condition may be vision problems, a new case report shows.
The chikungunya virus usually causes fever and severe pain, but it may also lead to brain inflammation and even death, a new study shows.
The fragile remains of 150-million-year-old eggshells are helping researchers figure out what kinds of nests dinosaurs created for their eggs, according to a new study.
The death of a Liberian teen from Ebola raises a lot of questions.
An empty spider web isn't a mystery; it's a clue.
A flatworm can regenerate its head and brain in the shape of those in other planarian species, researchers have found. Here are images of the bizarre creatures and the experiment that revealed this odd shape-changing ability.
An American doctor who survived Ebola developed serious eye problems shortly after he recovered from the disease, making him the second U.S. Ebola survivor to have eye problems, according to a new report.
Mars may one day have rings like Saturn's, if the Red Planet manages to completely crush its innermost moon, Phobos.
Computer simulations suggest that filaments of invisible dark matter form long "hairs" when they go through planets such as Earth.
Physicists have coupled together thousands of atoms at room temperature, wherein actions on one of the atoms can affect its partners across the cosmos. Previously, these atoms could be paired only at temperatures cold enough to liquefy helium.
For years, there has been scant fossil evidence showing how the giraffe evolved to have such a long neck. But now, the remains of a 7-million-year-old creature with a shorter neck provides proof that the giraffe's iconic feature evolved in stages.
These apps can help users track and manage their chronic pain.
On the 100th anniversary of what is arguably Einstein's greatest accomplishment — the publication of his theory of general relativity — PBS is celebrating his work and giving viewers insights into the man behind the theory.
Reports of a potent pill powering ISIS fighters have some on high alert. Here's what drug experts say.
An outbreak of E. coli bacteria tied to chicken salad sold at Costco has sickened 19 people in seven states, according to the Centers for Disease Control and Prevention.
Turkey Day can be challenging for people with acid reflux, or GERD. Here are some tips that may help.