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The Ultimate Seal Quiz
play.howstuffworks.com/quiz/seal-quiz
There are many different kinds of seals, each with a different size, shape, color and behavior. Some seals are smarter than others, some seals diver deeper than others, some like warm water and some like the icy waters of the poles. Take this quiz to learn more about seals.
Genetics at Work Pictures
science.howstuffworks.com/life/genetic/genetics-work-pictures.htm
Our ultimate gene pictures show how our genes work. Check out our ultimate gene pictures to see how they operate.
Types of Bears
animals.howstuffworks.com/mammals/types-of-bears.htm
The brown bear, the grizzly and the Kodiak bear are all of the brown bear species. Learn all about the brown bear at HowStuffWorks.
7 of the Largest Crocodiles Ever Measured
animals.howstuffworks.com/reptiles/largest-crocodiles-ever.htm
One of the largest crocodiles ever was so big that one website called the species "bus-sized."
Hawk vs. Falcon: Spotting Differences Between Birds of Prey
animals.howstuffworks.com/birds/hawk-vs-falcon.htm
You spot a bird of prey, and your friend says it's a peregrine falcon but her partner says it's a hawk. Can you resolve the great hawk vs. falcon debate?
Anaconda: Snake of Frighteningly Enormous Proportions
animals.howstuffworks.com/snakes/anaconda-snake.htm
When you think of the word "anaconda," it probably conjures up images of massive, slithering serpents lurking in the waters of South America, right? Well, that's not too far off! The anaconda snake, scientifically known as Eunectes murinus, is the stuff of legends.
The Rough Earth Snakes Blends in With Its Environment
animals.howstuffworks.com/snakes/rough-earth-snake.htm
We're about to dive into the world of a snake you might not have heard much about: the rough earth snake. This small, secretive snake is found in various parts of the United States, and while it might not be as flashy as some other reptiles, it's got some nifty features that make it an important part of its ecosystem.
Identifying Red and Black Snake Species
animals.howstuffworks.com/snakes/red-and-black-snake.htm
In North America and other parts of the world, you may encounter a red and black snake along your hike and wonder if you're dealing with a venomous snake species or something like a harmless milk snake.
Saltwater Crocodile: Enormous and Dangerously Patient
animals.howstuffworks.com/reptiles/saltwater-crocodile.htm
The saltwater crocodile, Crocodylus porosus, is the largest living reptile on Earth, and it rules the waters from northern Australia to Southeast Asia. These massive reptiles are often called "salties" and can grow to incredible sizes, with large male saltwater crocodiles sometimes reaching lengths of up to 7 meters (23 feet).
10 Fascinating Facts About the New 'Tree of Life' Evolution Chart
science.howstuffworks.com/life/evolution/10-facts-new-tree-life-evolution-chart.htm
The newly developed family tree of Earth's 2.3 million species is a first draft of the 3.5-billion-year history of evolution.