Turbulent era sparked leap in human behavior, adaptability 320,000 years ago
Wed, 21 Oct 2020 14:09:19 EDT
The first analysis of a sedimentary drill core representing 1 million years of environmental history in the East African Rift Valley shows that at the same time early humans were abandoning old tools in favor of more sophisticated technology and broadening their trade, their landscape was experiencing frequent fluctuations in vegetation and water supply that made resources less reliably available. The findings suggest that instability in their landscape was a key driver of human adaptability.
Climate change likely drove early human species to extinction, modeling study suggests
Thu, 15 Oct 2020 11:17:29 EDT
Of the six or more different species of early humans, all belonging to the genus Homo, only we Homo sapiens have managed to survive. Now, a study combining climate modeling and the fossil record in search of clues to what led to all those earlier extinctions suggests that climate change -- the inability to adapt to either warming or cooling temperatures -- likely played a major role in sealing their fate.
How leaves reflect light reveals evolutionary history of seed plants
Wed, 14 Oct 2020 17:13:16 EDT
The way leaves reflect light, known as plant reflectance spectra, can illuminate the evolutionary history of seed plants, according to researchers. The researchers found that by measuring the light spectrum reflected by leaves, they can identify the plant and its chemistry, evolution and place in the tree of life.
Scientists reconstruct beetles from the Cretaceous
Thu, 08 Oct 2020 12:12:59 EDT
An international research team has examined four newly found specimens of the Mysteriomorphidae beetle using computer tomography and has been able to reconstruct them. The results allow to draw conclusions about the evolution of the species during the Cretaceous period.
Toothless dino's lost digits point to spread of parrot-like species
Tue, 06 Oct 2020 22:02:09 EDT
A newly discovered species of toothless, two-fingered dinosaur has shed light on how a group of parrot-like animals thrived more than 68 million years ago.