Largest-ever Red-headed Weaver Anaplectes rubriceps colony

Giant claw reveals the largest ever arthropod.

The fossil record has yielded various gigantic arthropods, in contrast to their diminutive proportions today. The recent discovery of a 46 cm long claw (chelicera) of the pterygotid eurypterid ('sea scorpion') Jaekelopterus rhenaniae, from the Early Devonian Willwerath Lagerstätte of Germany, reveals that this form attained a body length of approximately 2.5 m-almost half a metre longer than pr...

Everything's Bigger in Texas: "The Largest Math Proof Ever"

The Boolean Pythagorean Triples problem has been a long-standing open problem in Ramsey Theory: Can the set N = {1, 2, 3, ...} of natural numbers be partitioned into two parts, such that neither part contains a triple (a, b, c) with a^2 + b^2 = c^2 ? A prize for the solution was offered by Ron Graham decades ago. We show that such a partition is possible for the set of integers in [1,7824], but...

Fall movements of Red-headed Woodpeckers in South Carolina

Fall migration of Red-headed Woodpeckers (Melanerpes erythrocephalus) can be erratic, with departure rates, directions, and distances varying among populations and individuals. We report fall migration departure dates, rates, and routes, and the size of fall home ranges of 62 radio-tagged Red-headed Woodpeckers in western South Carolina. Rates of fall migration differed among years; all radio-t...

Largest-ever outbreak of Ebola virus disease thrusts experimental therapies, vaccines into spotlight.

Asefforts to successfully contain the largest outbreak of Ebola virus disease in history prove elusive, the mounting number of cases and deaths has brought research to developmuch-needed treatments andprotectivevaccines into the spotlight.Although theapprovalprocess for drugs and vaccines is typically slow and deliberate, the latestoutbreak,declaredby the World Health Organization (WHO) on Augu...

Millions Protected in Africa’s Largest-ever Emergency Yellow Fever Vaccination Campaign