The mallard duck is unique in that
A) it does not sleep.
B) they can sleep with one hemisphere awake and the other asleep.
C) eye movements do not occur during their sleep.
D) slow-wave sleep is absent from their sleep pattern.
E) these ducks sleep with both eyes wide open.

Question

Quizplus · Accepted Answer

Mallard ducks are capable of sleeping with one hemisphere of their brain awake and the other hemisphere asleep. This is known as unihemispheric sleep, which allows the ducks to remain alert to potential predators while still getting some rest.

The Mallard Duck Is Unique in That