Fossil insect find, Zekuforma maculata, reveals a land-to-water experiment in evolution, rewriting 230 million years of true ...

Rapid adaptive radiation poses two distinct questions apart from speciation and adaptation: What happens after one speciation event and how do some lineages continue speciating through a rapid burst?

Scientists report adaptive divergence in cryptic color pattern is underlain by two distinct, complex chromosomal rearrangements, where millions of bases of DNA were flipped backwards and moved from ...

When Charles Darwin traveled to the Galapagos Islands almost 200 years ago as a gentleman naturalist, he used the power of observation to develop his theory that species evolve over time. When Charles ...

Models of adaptive radiation were originally developed to explain the early, rapid appearance of distinct modes of life within diversifying clades. Phylogenetic tests of this hypothesis have yielded ...

Part 1. The historical perspective -- 1. Introduction -- 2. The history of mammals [animals] -- 3. The early radiations -- 4. The Edentata -- 5. The Pholidota -- 6. Conclusions concerning the early ...

For patients with recurrent retroperitoneal sarcomas that cannot be treated surgically, treatment choices are limited. These tumors can grow quite large in the abdomen adjacent to vital organs or ...

In January, Cleveland-based University Hospitals Seidman Cancer Center became one of the first facilities in the U.S. to offer adaptive radiotherapy. At the time, Daniel Spratt, MD, chair of radiation ...