Meet Chilesaurus diegosuarezi, a newly described dinosaur discovered by a seven-year-old boy in Chile. The theropod was related to famous meat-eaters like T. rex, but researchers think it was a vegetarian. Stranger still: It possessed a mixture of anatomical features unlike anything researchers have seen before.
The South American rainforest katydid is not a human. In fact, it is so very unlike a human, it seems ridiculous to belabor the point with specifics. Six legs, wings, an exoskeleton. You get the picture. Its ears are on its hind legs, for crying out loud.
Some accuse evolution of being pretty directionless. After all, the whole process involves random genetic mutations. But if evolution is just a toss of a million-sided die, why do so many animals turn out eerily similar? Nope, it's not intelligent design. We take a look at the creepy look-alikes brought on by what…
To adapt to their eternally dark surroundings, Mexican cavefish have gone blind, lost their pigment, and changed their sleep cycle. You can see one in the photo up top. Here's the weird thing though...all those fish are the same species.
The marsupials and monotremes that are now found primarily in Australia represent a sort of evolutionary middle ground, mixing together their mammalian features with those of reptiles or amphibians. One ancient marsupial represents a particularly weird case of convergent evolution.
Bats and dolphins have something in common: They both use "echolocation," or sonar, to navigate the air and water. Now two scientific breakthroughs help explain how these animals' extraordinary abilities evolved, and how they work.