In 1975, on the last day of my first year of teaching biology, a colleague and I began planning a summer trip. We were 22 years old and had never been anywhere outside the state of Texas, except to ...

ALTHOUGH a carotid rete mirabile is present in many mammals, notably the artiodactyla, its function is uncertain. Many workers have suggested that the rete may regulate the cerebral blood-flow 1,2, ...

Watching a mallard duck waddle across a frozen pond completely unfazed by the cold march, I wondered at how I would feel doing the same thing in bare feet. I suspect that pain and misery aside, it ...