A 4 min read In response to viral infection, the immune systems of mice typically produce antibodies that destroy the virus by binding to proteins on its surface. Mice infected with the herpesvirus generally develop keratitis, a...

A 4 min read In a study conducted in Pennsylvania, servers in various restaurants wrote “Thank you” on randomly selected bills before presenting the bills to their customers. Tips on these bills were an average of...

A 4 min read Archaeologists have firm evidence that Norse explorers reached the coast of North America around A.D. 1000, long before Christopher Columbus’ first voyage to America in 1492. Some people claim to have...

A 5 min read Researchers conditioned a group of flies to associate a particular odor with a weak electric shock. Twenty-four and forty-eight hours later the researchers conducted tests on the flies, both individually and in...