Giant turtle revealed in "remarkable" 57-million-year-old fossils
The prehistoric turtle may have reached a total body length of around 5 feet, according to paleontologists.
Saber-toothed tigers' skulls reveal how they grew their fangs
The skulls showed the saber tooth socket was occupied by two teeth, with the adult tooth slotted into the baby tooth.
Human jawbone found embedded into tile by couple renovating bathroom
The couple's dentist son told Newsweek: "I was unsettled at first, but also I was in disbelief that it could be human."
Great white shark's "gigantic" ancient relative revealed
The creature had the potential to reach up to 30 feet long, making it possibly the largest shark of this type ever to have lived.
Paleontologists discover "exceptionally large" fossil snake
This snake's size makes it one of the largest snakes that ever lived, rivaling the size of the enormous Titanoboa.
Extinct giant kangaroos discovered in Australia
One species was twice as tall as today's red kangaroo, which can stand up to nearly 6 feet.
Paleontologists may have solved 150-year-old bone mystery
"It seems highly probable that the fragments in question also belong to an ichthyosaur," researcher Marcello Perillo said.
Jurassic fossil discovery leads to new mammal theory
"The fossils show incremental modifications that demonstrate the complex process of adaptation," researcher Patricia Vickers-Rich said.
Woman discovers tooth of extinct mammal on Oregon coast
Amariah Jacobs told Newsweek that her hands were "trembling" when she picked the tooth up, and she "felt stunned silent."
Paleontologists discover first-ever fossil tapeworm trapped in amber
Because of their soft bodies and parasitic lifestyles, tapeworms had never been definitively identified in the fossil record.
'Jurassic Park' vindicated as triceratops shown to have lived in herds
Research on the teeth of five fossilized triceratops showed they had the same migratory existence, implying they moved as a group at least some of the time.
Paleontologist finds rare fossil of spider in disguise
The discovery provides insight into the evolution of this unusual behavior in present-day spiders.
Paleontologists reveal new species of ancient crocodile was Triassic tank
The paleontologists were surprised to find the ancient reptile's carapace of bony armor practically complete.
Giant sail-backed dinosaur might have been "heron from hell"
The dinosaur, Spinosaurus aegyptiacus, was one of the largest predators ever to prowl the Earth, according to researchers.
New species of giant ancient sea lizard with 'dagger-like teeth' found
The "positively demonic" marine reptile may have measured around 25 feet long and would have been a top predator millions of years ago.
Better Planet
Georgia historical sites face 'imminent risk' of destruction
By the year 2100, up to 5,000 historical and archaeological sites in Georgia could be underwater.
"Extraordinary" fossil discoveries reveal plants from 30 million years ago
Despite their age, some of the plant specimens preserve delicate soft tissues, such as those of the fruits and seeds.
New species of vampire squid found fossilized "with prey in its arms"
The 183 million-year-old find represents "a tremendously rare case of fossilized predator-prey interactions frozen in time."
New species of "unique" prehistoric dolphin discovered
The ancient dolphin may have "scanned shallow waters to capture small prey in a basket of teeth," the researchers explain.
Newly discovered prehistoric mammal species among largest of its time
Previously unknown mammal species lived millions of years ago, prior to the mass extinction event that wiped out the dinosaurs.
Renowned lizard fossil exposed as forgery
The black parts of the fossil, previously thought to be preserved soft tissues, have turned out actually to be black paint.
Dog walker's bone find leads to near-complete fossil titanosaur skeleton
The dinosaur is a 70-million-year-old titanosaur, which was one of the largest groups of dinosaurs, and included brachiosaurus and diplodocus.
Amateurs find world-class fossil site from 470 million years ago
The site contains almost 400 exceptionally well-preserved fossils that shed light on a prehistoric polar ecosystem.
Paleontologists reveal prehistoric shark's teeth had their own tiny fangs
The newly discovered shark lived in the Paleocene period, approximately 65 million years ago.
New Pterosaur Species Discovered a 'Complete Surprise'
The previously unknown pterosaur species likely had a wingspan of about 5 feet.
You've never seen a tree like this, say paleontologists
"Our fossil is unique evidence of an extreme form of evolution that someone might imagine in their dreams," a researcher said.
New and unusual catlike animal from 33 million years ago found
The prehistoric creature is a very early member of a group of catlike carnivorous mammals found on several continents.
New species of prehistoric cat discovered with "powerful bite"
The extinct feline, which lived around 15 million years ago, had a "very robust" jaw compared to that of similarly sized cats.
Student discovers ancient flying reptile that lived 200 million years ago
The student was investigating fossils from an area that was once home to an ancient chain of islands that no longer exists.
Paleontologists reveal new US dino that lived just before mass extinction
The name of the new species, which lived just over 66 million years ago, roughly translates to "Pharaoh's dawn chicken from hell".