New York Post: Frogs become transparent by ‘hiding’ blood in their liver during sleep: study
Frogs become transparent by ‘hiding’ blood in their liver during sleep: study
Ideal blood pressure is categorized as normal. Increased blood pressure may be categorized as elevated, stage 1 or stage 2 depending on the specific numbers. A diagnosis of high blood pressure is usually based on the average of two or more readings taken on separate visits.
A higher than normal concentration often is a result of not drinking enough fluids. Protein. Low levels of protein in urine are typical. Small increases in protein in urine usually aren't a cause for concern, but larger amounts might indicate a kidney problem. Sugar. The amount of sugar (glucose) in urine is typically too low to be detected.
Science News: Sleeping glass frogs hide by storing most of their blood in their liver
As tiny glass frogs fall asleep for the day, they take almost 90 percent of their red blood cells out of circulation. The colorful cells cram into hideaway pockets inside the frog liver, which ...
Sleeping glass frogs hide by storing most of their blood in their liver
The New York Times: How a See-Through Frog Hides Its Red Blood From Predators
The glass frog’s unusual adaptation to bolster its camouflage could offer clues for preventing deadly blood clots in people. By Veronique Greenwood At first glance, you might miss the glass frog of ...
Glass frogs have the rare ability to turn on and off their nearly transparent appearance, researchers report Thursday in the journal Science. Ernesto Benavides/Getty Images Now you see them, now you ...