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This case study describes the daily osmotic struggle for survival faced by hummingbirds. The narrative is written from the viewpoint of a human observer who sees an Anna's hummingbird feeding on flowers outside of her window.  She notices that the birds mostly feed early in the morning and again in the evening at dusk; midday encounters are rare.  The case raises questions about floral nectar production, how this correlates to feeding bouts, and how this in turn correlates to the daily osmotic challenges faced by these nectarivorous birds and their allies (sunbirds). Students will learn about renal adaptations for survival and how they operate. Finally, since hummingbirds have a high metabolic rate and cannot feed overnight they undergo torpor during this time, an energy saving physiologic state.  Students read journal articles to answer case questions, which should lead them to a better understanding of the related physiological processes of osmoregulation, metabolic rate and torpor.

 Daily news articles, blogs and biweekly magazine covering all areas of science

In this case study, a college student named "Blake" winds up in the emergency room after he experiences a panic attack brought on by drinking a mixture of beverages containing caffeine and alcohol. His panic attack results in a severe episode of hyperventilation. The alcohol he has consumed has the added effect of making the situation worse by impairing Blake's perception and judgement. Through this case study, students learn about acid/base chemistry as they explore hyperventilation, the Bohr effect, the Haldane effect, and how alcohol and stimulants such as caffeine can affect the acid-base balance in the body. This case was originally designed for a flipped classroom, and the associated videos, including one developed by the author, contain foundational information to lead students through basic chemistry and help them connect daily activities to homeostasis and the Bohr effect. Originally written for a general biology course in which general chemistry concepts are discussed, the case could easily be modified for use in an anatomy and physiology course.

Promotes accurate understanding and comprehensive teaching of evolutionary theory for a wide audience Explores the practical applications of evolutionary principles in daily life and the impact of evolutionary theory on culture and society throughout history Offers teaching tools such as unit and lesson plans and classroom activities, as well as additional online content such as podcasts and powerpoint presentations

Newsela is an innovative way to build reading comprehension with nonfiction that's always relevant: daily news. It's easy and amazing. See the impact Newsela can have on your classroom.

Want to know how much bacteria we host within our body and how many we encounter on a daily basis well check out this clip from Life On Us where we will see the different types of bacteria that inhabit us like Demodex Folliculorum which is a face mite...

The Weather Wiz weather prediction education site goal is to introduce teachers to the most successful school weather program in the United States and get the student involved in this fascinating science. The Program was designed by Jim Witt and honed via years of teaching and weather predictions.

 Researchers at the University of Alberta in Canada found that hand-washing and taking zinc are the most helpful ways to avoid getting the common cold. 

After an exhaustive survey of contemporary epigenetics studies, one researcher has concluded that some of the effects of stress, cancer and other chronic diseases may be passed on to our offspring -- and theirs -- through deep and complicated underlying cellular mechanisms that scientists are just beginning to understand.

A promising new natural treatment for Alzheimer's disease is moving toward clinical trials. This will be a major step forward as there is nothing on the market that slows the progression of Alzheimer's; natural products chemist has patented a botanical compound, withanamides.

A research center has enrolled its first patient in a phase 3 clinical trial that uses a person's own kidney cancer cells to make a vaccine tailored to kill those cells.

Scientists and clinicians have demonstrated that a neuroprotectant drug protects the human brain against the damaging effects of stroke. In patients who had ruptured brain aneurysm, which comprise a population of patients at very high risk of neurological damage, those treated with Tat-NR2B9c all had good neurological outcomes, whereas only 68% of those treated with placebo had good outcomes.