Glow-in-the-dark rabbits were born a few days ago at the University of Istanbul, Turkey. To produce the ‘mutant’ bunnies, researchers took two embryos from a pregnant female rabbit, injected them with a fluorescent jellyfish protein, and reinserted them into the female rabbit. The scientists believe this experiment could help in the development of better, more efficient ways to produce medicines.

This Bonsai tree was planted in 1626, and survived the atomic bomb at Hiroshima on August 6th, 1945, 68 years ago today. It was given to the people of the United States as a Bicentennial Gift in 1976.

Not all sharks are built for speed. This bottom-dwelling wobbegong shark stays near the ocean floor. Its camouflage allows it to go largely unnoticed, until its prey wanders too close or thinks the tassels are something to eat. Then, the wobbegong leaps into action, devouring the unlucky fish, squid, or crustacean. They’ve even been seen swallowing other sharks whole!

In the early 1900s, the disease pellagra was widespread in the United States, especially in southern states. Individuals with pellagra were weak, and they developed diarrhea, a skin rash, and mental confusion. Each year, thousands of Americans died from this dreaded illness. In 1914 the U.S. surgeon general assigned Joseph Goldberger, a physician who worked in a federal government laboratory, to study pellagra. Most medical experts thought pellagra was an infectious disease because it often occurred where people lived in close quarters, such as prisons, orphanages, and mental health institutions. Goldberger knew from his previous research that infectious diseases usually spread through a population by close physical contact. While investiga ...