Fossils
- Fossils
How to tell if a T. rex is expecting
A chemical test of tyrannosaur bone can determine whether the dino was pregnant — and therefore a female.
- Fossils
Neandertal toe contains human DNA
DNA from a 50,000-year-old Neandertal woman’s toe bone shows humans left a mark on the ancient species — and much earlier than scientists had thought.
- Animals
Roadkill : Learning from the dead
Roadkill can be more than a smooshed-up carcass. Scientists study these highway casualties to learn more about wildlife and their environments.
- Animals
Picture This: Plesiosaurs swam like penguins
A computer model suggests plesiosaurs — ancient marine reptiles — swam like penguins, using front flippers for power and back flippers for steering.
- Earth
Bubbles may have sheltered Earth’s early life
For Earth’s earliest inhabitants, a bubble on the beach would have been the next best thing to a safety blanket.
- Fossils
Predatory dinos were truly big-mouths
Large meat-eating dinosaurs could open their mouths wide to grab big prey. Vegetarians would have had a more limited gape, a new study suggests.
- Microbes
Fossils show sign of ancient vampire microbes
Scientists have found 750-million-year-old fossils of cells with puncture wounds. This appears to offer evidence that vampirelike creatures sucked them dry.
- Climate
Clues to the Great Dying
Millions of years ago, nearly all life on Earth vanished. Scientists are now starting to figure out what happened.
- Animals
This prehistoric meat eater preferred surf to turf
For years, paleontologists thought the fierce, sharp-toothed Dimetrodon made a meal of land-based plant eaters. Not anymore. New fossils suggest aquatic animals were its meals of choice.
- Fossils
Fossils: Is this new species a human relative?
Fossils found in an underground cave in South Africa may be from a previously unknown species of the human genus, Homo.
- Animals
Remains of ancient primate found in Oregon
Scientists have found a few teeth and a fossil jaw of an ancient species of primate. It may be related to modern lemurs or tarsiers.
- Animals
More dinosaur bones yield traces of blood, soft tissue
More dinosaur bones are found to contain residues of blood and soft tissue. The discovery could help point to when dinosaurs turned into warm-blooded creatures.
