Evolution

Hybridization, Associated Gene Exchange In Baboons: How New Species Emerge

Through our evolutionary history, change is the one constant. 99.9999% of species that have ever existed are extinct and new ones emerged that adapted to constantly changing environments.  Baboons, with six species widespread in sub-Saharan Africa, are a ...

Article - News Staff - Jan 31 2019 - 10:34am

The Magic of 10's of Billions in Complex Systems?

Why is it that large important complex systems often have about 10-100 billion (or 1E10 to 1E11 give or take an order of magnitude) objects? This seems to apply to the number of stars in the Milky Way (3E11), the number of galaxies in the observable univer ...

Blog Post - David LePoire - Feb 16 2019 - 12:10pm

Grasses Have Been Genetically Modifying For Millenia- By Stealing

Grasses have been able to short cut evolution by taking genes from their neighbors, finds a new study. Since Darwin, much of the theory of evolution has been based on common descent, where natural selection acts on the genes passed from parent to offspring ...

Article - News Staff - Feb 20 2019 - 12:50pm

Zebra Stripes And Flies: Occam's Razor Versus Stripes Make Terrible Landing Strips?

It is believed by some that zebras have black and white stripes as a defense mechanism against flies. To others, that seems too complex. In an Occam's Razor evolutionary universe it only leads to more speculation- why would they evolve such a sophisti ...

Article - News Staff - Feb 22 2019 - 11:33am

The Mysterious Genetic Origin Of Scandinavian Wolves

The Scandinavian wolf population is a bit of an evolutionary mystery. In the hoped for descent with modification scenario, textbook natural selection, there would be signs that hybrids of dog and wolf have contributed to this population, but none have been ...

Article - News Staff - Mar 29 2019 - 12:08pm

Why Strange Bat Skulls Evolved As They Did

When most people think of bats they think of vampires or the World's Greatest Detective, but biologically they are much more diverse than pop culture reveals. With more than 1,300 species worldwide they are one of the largest groups of mammals. Some h ...

Article - News Staff - May 12 2019 - 3:44pm

Mutations For Herbicide Resistance Are Rarer Than We've Been Told

Evolution will happen, in medicines like antibiotics, and in crop protection like herbicides. Though some groups may continue to use older, less effective products such as organic copper sulfate, evidence-based agriculture works to create new products that ...

Article - News Staff - May 28 2019 - 2:02pm

How Are Cancer Cells Like HeLA Able To Survive Evolution?

Cancer starts as a single rogue cell whose mutations then trigger aggressive growth, damaging the health of the organism. But if cancer cells were accumulating harmful mutations faster than they could be purged, wouldn't the population eventually die ...

Article - News Staff - Jun 3 2019 - 9:50am

Interdigital Cell Death: More Atmospheric Oxygen Is A Biological Signal To Leave Out Webbed Digits

Free fingers have obvious advantages on land, and don't even get us started on opposable thumbs, but provides aquatic or gliding animals with more suitable webbed ones. But both amphibians and amniotes, which include mammals, reptiles, and birds, can ...

Article - News Staff - Jun 13 2019 - 1:39pm

Dinosaur Extinction Gave Lichen Evolution A Boost

Some species have thrived only because they are food sources. Cows, for example, would be endangered and likely extinct if not for human animal husbandry. The same goes for many vegetables. They would be sparse or even gone if not for our genetic intervent ...

Article - News Staff - Jun 28 2019 - 7:22am