human papillomavirus

Anyone who has ever seen their dog hop to attention when they used the word “treat” knows that dogs obviously understand the same words as humans. But is it accurate to say that animals use language? Man’s best friend is hardly the only animal capable of amazing humans with communication skills. Extensive studies using gestural communication (sign language) explore the cognitive potential in the great apes. …

Catty It seems horribly unfair to adorable cats that catty is a human descriptor meaning “devious or spiteful” (and usually in reference to female behavior). What gives? The word cat has been around since the year 700. But then, in the Middle Ages, cat became one of the many offensive terms against women and was slang for “prostitute.” The association might have been made because …