Kim from Osoyoos, British Columbia, Canada, is studying anatomy and wonders why the lower end of one’s sternum is called the xiphoid process. The word process in this case means projection, and xiphoid comes from the Greek word for sword. Early...
unison calling n.— «The breeding adults are noisiest now during the mating ritual, when pairs are engaged in what is known as “unison calling.” They throw their heads back and unleash a stream of songs and rattles, turning their heads back and...

