A recent paper by Kavoi & Jameela (2011) reported that a part of the brain responsible for olfaction, the olfactory

bulb, is larger in dogs than humans, even after accounting

for differences in overall brain size. Using the principles of

natural or artificial selection, hypothesize how dogs came

to have this larger structure in their brain and predict how

it might impact their behavior.​

Ms. b is a 40-year-old woman who is the ceo of a struggling company. lately she has been experiencing headaches that are so severe that she gets dizzy and nauseated, and she is unable to carry out her usual daily routines. she reports that they usually begin as a throbbing pain in the left temple and then seem to spread throughout her head. a diagnosis of migraine headache is made after several tests. based on the patient history and signs and symptoms, discuss this type of headache and its physiological causes. discuss the available treatments to prevent and/or relieve the patient’s migraine.