Paleontology
- Paleontology
300 million-year-old giant shark swam the Texas seas
Fossil find shows oldest known ‘supershark,’ about the size of a limo, prowled the ocean 300 million years ago.
- Paleontology
New evidence weakens case against climate in woolly mammoths’ death
Hunters responsible for woolly mammoths’ extinction, suggests a chemical analysis of juveniles’ tusks.
- Paleontology
Dimetrodon’s diet redetermined
The reptilelike Dimetrodon dined mainly on amphibians and sharks, not big herbivores as scientists once believed.
- Plants
Early cyanobacteria fossils dug up in 1965
In 1965, early photosynthetic plant fossils were discovered. The date of earliest oxygen-producing life forms has since been pushed much earlier.
- Earth
Giant asteroid may have triggered deadly volcano eruptions
Increased volcanic eruptions coincided much more closely with an asteroid impact and the extinction of the dinosaurs than previously believed, a new study suggests.
- Paleontology
New dinosaur identified in Alaska
New species of duck-billed dinosaur discovered in the Alaskan permafrost.
- Oceans
Earth got first whiff of oxygen 3.2 billion years ago
Photosynthesis by early cyanobacteria pumped oxygen into Earth’s oceans 200 million years earlier than once thought, new geochemical analyses show.
- Paleontology
Earliest sea scorpion discovered in Iowa
Earliest sea scorpion discovered in impact crater in Iowa.
- Paleontology
New dolphin fossil makes a splash
A newly discovered dolphin fossil provides clues to the evolution of river dolphins in the Americas.
- Paleontology
New dolphin fossil makes a splash
A newly discovered dolphin fossil provides clues to the evolution of river dolphins in the Americas.
- Earth
Volcanic activity convicted in Permian extinction
Precision dating confirms that Siberian volcanic eruptions could have triggered the Permian extinction.
- Animals
‘Prehistoric Predators’ is a carnival of ancient dinosaurs, mammals and more
A new children’s book offers gorgeous illustrations and information for everyone about ancient carnivores.
