Yahoo: Glass frogs become invisible by holding their breath and hiding their blood
Glass frogs become invisible by holding their breath and hiding their blood
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.
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 ...
It’s tough being a frog. You have to account for opposing lanes of traffic across a busy highway and, if you get through that, you have to hop across logs and the backs of turtles, avoiding alligators ...
New Scientist: World’s only lungless frog species actually does have lungs after all
A tiny frog from Borneo was thought to be the only known frog species with no lungs – but it turns out they do have lungs after all. These frogs are fully aquatic and live in cold and fast-flowing ...