Feature Channels

Evolution and Darwin

Filters:

  • (Press "esc" to clear)

Science

Channels:

Keywords:

Walking Fish Reveal How Our Ancestors Evolved Onto Land

Polypterussenegaluscloseup-AntoineMorin.jpg

About 400 million years ago a group of fish began exploring land and evolved into tetrapods – today's amphibians, reptiles, birds, and mammals. But just how these ancient fish used their fishy bodies and fins in a terrestrial environment and what evolutionary processes were at play remain scientific mysteries.

View | Comment

Science

Channels:

Keywords:

International Scientific Team Criticizes Adoption of 'Novel Ecosystems' by Policymakers

Novel ecosystems arise when human activities transform biological communities through species invasions and environmental change. They are seemingly ubiquitous, and thus many policymakers and ecologists argue for them to be accepted as the "new normal"—an idea the researchers say is a bad one.

View | Comment

Science

Channels:

Keywords:

Talking About Regeneration: How Do Some Animals Regrow Missing Parts?

14221021149_ebeaca819b_k.jpg

By studying the genetic mechanisms that enable regeneration in our distant evolutionary cousins, scientists hope to one day uncover potentially latent healing abilities that may lie hidden in our own genome.

View | Comment

Science

Channels:

Keywords:

Study Traces Evolutionary Origins of Migration in New World Birds

Scientists from the University of Chicago have developed a new method to reveal the ancestral ranges of New World birds, and discovered that bird migration in the Americas evolved in species that resided in North America. Their work also offers evidence that many tropical bird species descended from migratory ancestors that lost migration.

View | Comment

Science

Channels:

Keywords:

UF Study Advances ‘DNA Revolution,’ Tells Butterflies’ Evolutionary History

LEPIDOPTERA_BIODIVERSITY_lowrez.jpg

By tracing nearly 3,000 genes to the earliest common ancestor of butterflies and moths, University of Florida scientists have created an extensive “Tree of Lepidoptera” in the first study to use large-scale, next-generation DNA sequencing.

View | Comment

Science

Channels:

Keywords:

Shrinking Dinosaurs Evolved Into Flying Birds

4_Microraptor__BrianChoo_small.jpg

A new study led by an Australian scientist has revealed how massive, meat-eating, ground-dwelling dinosaurs − the theropods − evolved into agile flyers: they just kept shrinking and shrinking, for over 50 million years.

View | Comment

Life

Social and Behavioral Sciences

Channels:

Keywords:

Philosopher Uses Game Theory to Understand How Words, Actions Acquire Meaning

wagner.jpg

The latest work from a Kansas State University philosopher appears in the scientific journal Proceedings of the National Academy of Sciences of the United States of America, which is a rarity for philosophy research.

View | Comment

Science

Channels:

Keywords:

Fecal Transplants Let Packrats Eat Poison

WoodratCreosoteByKohl_300dpi2.4MB.jpg

Woodrats lost their ability to eat toxic creosote bushes after antibiotics killed their gut microbes. Woodrats that never ate the plants were able to do so after receiving fecal transplants with microbes from creosote-eaters, University of Utah biologists found.

View

Science

Channels:

Keywords:

Study Shows How Effects of Starvation Can Be Passed to Future Generations

wormrnatrans.jpg

A new study, involving roundworms, shows that starvation induces specific changes in so-called small RNAs and that these changes are inherited through at least three consecutive generations, apparently without any DNA involvement.

View | Comment

Life

Arts and Humanities

Channels:

Historian Re-Constructs Charles Darwin’s Beagle Library Online

For close to 180 years, Charles Darwin’s library aboard HMS Beagle during his expedition around the world in the 1830s remained lost. The library was dispersed at the end of the voyage. Today, the library has been electronically re-constructed in its entirety and made freely available online.

View | Comment