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12 Extinct Animals That Once Roamed the Earth
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Learn more about the top 10 most mysterious creatures to disappear from the earth.
Think Dimetrodon Was a Dinosaur? Think Again
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Dimetrodon may look for all the world like a dinosaur, but in reality, was a member of the same clade, or group of animals, that gave rise to mammals.
Argentinosaurus Was Almost Half as Long as a Football Field
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Argentinosaurus is one of the largest known dinosaurs to have ever walked the Earth, and its sheer size captures the imagination of scientists and enthusiasts alike.
Meet Palaeophis Colossaeus, the Largest Sea Snake of All Time
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If you like swimming in the ocean, you'll probably be glad to hear that Palaeophis colossaeus, a 40-foot sea snake, has been extinct for millions of years.
The Orchid Mantis Looks Like a Flower, 'Stings' Like a Bee
animals.howstuffworks.com/insects/orchid-mantis.htm
For decades scientists assumed these insects looked so much like orchids as a form of camouflage. But they were wrong. They look this way because they're deceptive predators.
The Heaven's Gate Cult: A Sad, Strange Story of Manipulation
history.howstuffworks.com/historical-events/heavens-gate.htm
"Internet cult" Heaven's Gate is seared in the memory of the '90s public for the fact that 39 members committed suicide wearing matching tracksuits and sneakers, as the Hale-Bopp comet approached Earth. But what made them do it?
The Largest Carnivorous Dinosaur May Not Have Been T. Rex
animals.howstuffworks.com/dinosaurs/largest-carnivorous-dinosaur.htm
They lived about 30 million years apart and never set foot on the same continent. Yet Giganotosaurus carolinii is always getting compared to the world's most popular dinosaur, the beloved and well-known Tyrannosaurus rex, both vying for the position of the largest carnivorous dinosaur in history.
Eve Gene: Do We All Descend From a Common Female Ancestor?
science.howstuffworks.com/life/evolution/female-ancestor.htm
A common female ancestor could be what all humans can trace their lineage to. Learn more about the common female ancestor and Mitochondrial Eve.
Iguanodon Skeletons Are the Most Complete of Any Dinosaur
animals.howstuffworks.com/dinosaurs/iguanodon.htm
Hey there, dinosaur fans! Let’s talk about one of the most fascinating extinct animals of all time: Iguanodon! Discovered in the early 19th century, Iguanodon was one of the very first dinosaurs ever named, and it played a huge role in kicking off the field of paleontology. With its iguana tooth-like structures and unique anatomy, this medium-sized herbivorous dinosaur became an instant sensation for scientists and dinosaur lovers alike.
Pteranodon vs. Pterodactyl: Comparing Non-dinosaur Species
animals.howstuffworks.com/dinosaurs/pteranodon-vs-pterodactyl.htm
If you've ever watched a dinosaur documentary or strolled through a natural history museum, you've probably heard a narrator make a big difference about pteranodon vs. pterodactyl species.