Paleontology
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Paleontology
Early Biped Fossil Pops Up in Europe
A newly described, nearly complete 290-million-year-old fossil of an ancient reptile pushes back the evidence for terrestrial bipedalism by 60 million years.
By Sid Perkins -
Paleontology
Listening to fish for extinction clues
Tiny fossils from fish that survived worldwide extinctions about 34 million years ago may reveal that cooler winters caused the die-off.
By Sid Perkins -
Paleontology
Old Colonies: Ancient formations are termites’ legacy
New analyses of mysterious pillars at two sites in southern Africa suggest that the sandstone features are petrified remains of large, elaborate termite nests.
By Sid Perkins -
Paleontology
Early Flight? Winged insects appear surprisingly ancient
New analyses of a fossil suggest that winged insects may have emerged as early as 400 million years ago.
By Sid Perkins -
Paleontology
L.A.’s Oldest Tourist Trap
Modern excavations at the La Brea tar pits are revealing a wealth of information about local food chains during recent ice ages, as well as details about what happened to trapped animals in their final hours.
By Sid Perkins -
Paleontology
Ancestral Handful: Tiny skull puts Asia at root of primate tree
Researchers have unearthed the partial skull of the oldest known primate, a tiny creature that lived in south-central China 55 million years ago.
By Bruce Bower -
Paleontology
Proud paleontologists proclaim: It’s a boy!
Marine sediments deposited about 425 million years ago have yielded what scientists contend is the world’s oldest undoubtedly male fossil.
By Sid Perkins -
Paleontology
Northern Extinction: Alaskan horses shrank, then disappeared
Horses that lived in Alaska shrank dramatically in body size before they went extinct at the end of the last ice age.
By Sid Perkins -
Paleontology
Ancient atmosphere was productive
New laboratory experiments suggest that extra carbon dioxide in the atmosphere in the era just before the dinosaurs went extinct may have boosted plant productivity to at least three times that found in today’s ecosystems.
By Sid Perkins -
Paleontology
Healed scars tag T. rex as predator
Healed wounds on the fossil skull of a Triceratops—wounds that match the size and shape of those that would be made by Tyrannosaurus rex—are a strong sign that the tooth scrapes are a result of attempted predation, not scavenging.
By Sid Perkins -
Paleontology
Role of gastroliths in digestion questioned
New analyses of the gastroliths in ostriches are casting doubt on the theory that large, plant-eating dinosaurs swallowed stones to grind up tough vegetation and thereby aid their digestion.
By Sid Perkins -
Paleontology
Tracks suggest chase, capture, and after-meal respite
A 1.3-meter-long, S-shaped trail of fossil footprints discovered in southwestern Indiana includes one set of disappearing tracks—suggesting an ancient chase—and an impression where the predator rested after its meal.
By Sid Perkins