Ancient plant and animal DNA buried in Arctic sediments preserve a 50,000-year history of Arctic ecosystems, suggesting that climate change contributed to mammoth extinction.
Colombia has a wealth of fossils, and geologists are leading the charge to both collect data and share ancient history with local communities.
A multidisciplinary team is jointly investigating mammal evolution and subduction dynamics to unravel how flightless land mammals migrated to the Greater Antilles and other Caribbean islands.
Periodic pulses of cooler temperatures may have disrupted the warm, humid, late Miocene climate that sustained the region’s great apes long after most species disappeared elsewhere.
On view for over a century, a fossil slab may display evidence of tropical freezing during the Jurassic, but scientists never noticed it—until one finally did. Some colleagues are not convinced.
The 500-million-year-old species is a distant relative of today’s crabs, spiders, and insects.
Cyclical changes in Earth’s orbit helped to preserve rare fossils in Morocco.
The fossils include jellyfish, box jellies, branched algae, and sponges, which are underrepresented in or missing from other deposits.
Isotope records and climate modeling suggest that the rainy Intertropical Convergence Zone expanded northward into the southern Caribbean during a warm interglacial period about 125,000 years ago.
Coal analysis suggests that plant-eating dinosaurs, by walking kilometers between their picnic areas and their toilets, distributed important nutrients widely and boosted ecosystem health.