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Evolution and Darwin

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Paleontology, Evolution, Extinction, Mammoth

Researchers Recover More Mammoth Bones From Chelsea-Area Farm


University of Michigan paleontologists conducted a second excavation this week at the Chelsea-area farm where the skull, tusks and dozens of intact bones of an ice age mammoth were pulled from the ground in late 2015.



Evolution, Sexes, males and females, Sex, Reproduction, Natural Selection, disruptive selection

Theory of the Evolution of Sexes Tested with Algae


The varied sex lives of a type of green algae have enabled a University of Adelaide researcher to test a theory of why there are males and females.



Evolution, Physics, Tensions, Branching, Yeast, Snowflakes, yeast snowsflakes, multicellularity, Lifecycle, evolution of life, Selection, Nature (magazine), Reproduction, Breakage

When Physics Gives Evolution a Leg Up by Breaking One

With no biological program to drive it, nascent multicellular clusters adopt a lifecycle thanks to the physics of their stresses. The accidental reproduction drives them to evolve as multicellular life.



climate adaptation, Oxygenation, Ordovician Period, Biodiveristy

Rise in Oxygen Levels Link to Ancient Explosion of Life, Researchers Find

A team of researchers, including a faculty member and postdoctoral fellow from Washington University in St. Louis, found that oxygen levels appear to increase at about the same time as a three-fold increase in biodiversity during the Ordovician Period, between 445 and 485 million years ago, according to a study published Nov. 20 in Nature Geoscience.



University Of Chicago, Geophysics, Fossil, fossil species, Paleontology, bryozoan, marine and freshwater biology, Evolution Biology

Fossil That Fills Missing Evolutionary Link Named After UChicago Professors


Scientists recently announced the discovery of a fossil that fills a missing evolutionary link—the first known member of the modern bryozoans to grow up into a structure. Called Jablonskipora kidwellae, it is named after UChicago geophysical scientists David Jablonski and Susan Kidwell.





Law and Public Policy


Rural Health, Healthcare, Robert Wood Johnson Foundation, National 4-H Council, Appalachia, Health Disparities, Racial Disparities, Prevention, Health Policy

Closing the Rural Health Gap: Media Update from RWJF and Partners on Rural Health Disparities


Rural counties continue to rank lowest among counties across the U.S., in terms of health outcomes. A group of national organizations including the Robert Wood Johnson Foundation and the National 4-H Council are leading the way to close the rural health gap.



man's ancestors , earliest fossils of mammals from line that led to humans, eutherian mammals

Man's Earliest Ancestors Discovered In Southern England

The two teeth are from small, rat-like creatures that lived 145 million years ago in the shadow of the dinosaurs. They are the earliest undisputed fossils of mammals belonging to the line that led to human beings.



Butterflies, Insects, Genetics, Evolution, Mimicry

How a “Flipped” Gene Helped Butterflies Evolve Mimicry


Scientists from the University of Chicago analyzed genetic data from a group of swallowtail species to find out when and how mimicry first evolved, and what has been driving those changes since then.



Space, Evolution, Evolution Biology, San Diego

Scientists Find Potential “Missing Link” in Chemistry That Led to Life on Earth


Chemists at The Scripps Research Institute (TSRI) have found a compound that may have been a crucial factor in the origins of life on Earth.



Extinction, Ecology, Evolution, Conservation

Caribbean Islands Reveal a “Lost World” of Ancient Mammals


A new study by an international team of scientists reports an analysis of the incredibly diverse “lost world” of Caribbean fossils that includes dozens of ancient mammals. The study reveals that the arrival of humans throughout the islands was likely the primary cause of the extinction of native mammal species there.

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