Science Square (Issue 145)
Exercise keeps brain connections alive Casaletto K et al. Late‐life physical activity relates to brain tissue synaptic integrity…
Oxygen
28 articles
“Breath-Taking”
Think of a kitchen. This kitchen has a blender for blending, an oven for cooking, a fridge for…
The Heart Never Rests
“God contracts and expands.” (2:245) The heart is a fairly small muscle that beats 100,000 times a day…
At Least
As I wheeled Chris off the elevator, he was quieter than the day before, definitely not in the…
The Hummingbird: Small in Size, Great in Art
Research on hummingbirds (also known as nectar birds or Colibris), the smallest of the 9,800 bird species living…
Science Square (Issue 130)
The hottest month on record for the planet Global Climate Report. NOAA National Centers for Environmental Information (http://www.ncdc.noaa.gov).…
Science Square (Issue 126)
Biggest extinction in Earth’s history caused by global warming—and how it could happen again Penn JL et al.…
How Do Animals Survive?
We live in a magnificent world inhabited by approximately 8,700,000 species. This number includes only general species, not…
The Perfect Conditions for Oxygen
Close your mouth and nose tightly. See how long you can stay like this without breathing. It is…
The Human Skin and Its Web of Vessels
We tend to overlook our skin, but it performs many vital functions for our bodies – including coming…
Extraordinary Blood Circulation in Crocodiles
By examining the heart of a crocodile, researchers have discovered how it is that an air-breathing land animal…
Guarding Queens of the Cellular Strongholds
Cells are the main building blocks of living organisms. Our body is composed of average one hundred trillion…
It’s Me Peter, Your Blood
Peter, normally you only see me when you have a cut on your skin and do not care…
The life and journey of a leaf
I was created as a small bud on the dry branch of a huge oak tree. The oak…
How Lungfish are Protected from the Sun
Water means purity, beauty, and life; it would be unrealistic to talk about life if water did not…