Lake Brienz, Brienz, Bernese Oberland, Switzerland

Female student sitting at a desk with a laptop and books, top view

Student yawning and being lazy in a university library

Setting up of an EKG during the foundation course in internal medicine at the Skills Lab of the medizinischen Fakultaet der Eberhard-Karls-Universitaet or Faculty of Medicine at the Eberhard-Karl University in Tuebingen, Baden-Wuerttemberg, Germany, Europ

Medication, prescription, receipt and coins

Doctor's surgery, injection with a disposable syringe, immunisation

Senior citizens rally against a plan by Governor Rick Snyder to tax pensions and use the revenue generated for a corporate tax cut, Lansing, Michigan, USA, America

Beekeeper showing honeycomb, beekeeping in the Amazon rain forest is part of agricultural activity in a settlement of formerly landless peasants, land reform, Entre Rios Province, Mato Grosso, Brazil, South America

Vouchers, Bildungsgutschein coupons, lettering "Gutschein Bildung", German for "education voucher", symbolic image

An estimated 500,000 march for immigration reform in Chicago May 1.