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The Glass Frog Diverts Its Blood Flow to Activate Invisibility
animals.howstuffworks.com/amphibians/glass-frog.htm
If you've ever seen a frog with skin so see-through you can spot its organs, you’ve stumbled into the world of the glass frog. Found mostly in Central and South America, these wild little amphibians belong to the family Centrolenidae. The glass frog's transparent skin makes it a marvel of evolution, not one of your average tree frogs.
What If Dinosaurs Were Alive Today?
science.howstuffworks.com/science-vs-myth/what-if/what-if-dinosaurs-alive.htm
Before leaving work, you'll need to check the traffic report. Lately, a disruptive T. rex has meant some adjustments to your commute. What other changes would be in store if dinos roamed the Earth?
How Charles Darwin Worked
science.howstuffworks.com/life/genetic/charles-darwin.htm
How did Charles Darwin develop the idea of natural selection? And how did Charles Darwin and "The Origin of Species" change our thinking and our world?
The Long-eared, Hopping Jerboa Is the Desert's Cutest Resident
animals.howstuffworks.com/mammals/jerboa.htm
With a little pig snout and the locomotion of a kangaroo, these tiny desert rodents hardly ever drink water and rarely urinate.
The Albatross Soars Over Thousands of Miles of Open Ocean
animals.howstuffworks.com/birds/albatross.htm
The albatross is one of nature's most impressive flyers, soaring effortlessly over the ocean for days or weeks at a time, often without flapping its wings for hours. These majestic seabirds are built for gliding across vast distances as they search for food and connect distant parts of the world.
How well do you know zoology?
play.howstuffworks.com/quiz/how-well-do-you-know-zoology
Animals ... we love 'em! But there's a lot more to the animal kingdom than YouTube videos of doggies and kitties. Test your knowledge of zoology with our quiz!
Why do you have two lungs but only one heart?
health.howstuffworks.com/human-body/systems/circulatory/two-lungs-one-heart.htm
The two lungs-one heart system evolved because that was all we needed to survive. Learn more about the evolution of the two lungs-one heart system.
Did Crocodiles Descend From Dinosaurs?
animals.howstuffworks.com/reptiles/crocodiles-descend-from-dinosaurs.htm
Crocodiles and dinosaurs definitely lived during the same time, but how closely are they related? Did crocodiles descend from dinosaurs?
Do animals have personalities?
animals.howstuffworks.com/animal-facts/do-animals-have-personalities.htm
Do animals have personalities? Pet owners would answer with a resounding yes. Find out how scientists would answer, "Do animals have personalities?"
The Morpho Butterfly: One of Few Species to Live Up to Its Hype
animals.howstuffworks.com/insects/morpho-butterfly.htm
When people think of the tropics, they often imagine lush green forests, towering trees and flashes of color flitting between the leaves. One of the most iconic and dazzling sights in this landscape is the morpho butterfly, especially the brilliant blue morpho.