A Branch in Feather Evolution
New look at a dinosaur suggests feathers evolved from thin strands
Evolution
-
-
On the Horns of a Dilemma
For male beetles, having big horns means that other organs suffer -
Bacteria-Crossed Wasp Lovers Reunite
Infections separate otherwise compatible insect species -
Don't Eat Me! I'm With Those Guys
Field experiment on butterflies finally proves an untested evolutionary theory -
Back in the Saddle Again, and Again
Remarkable genetic diversity suggests that horses were domesticated more than once -
Evolution's Rewind Button
Study suggests evolutionary changes are reversible--sometimes -
Evolution on the Fast Track
Some populations may grow apart quickly, studies suggest -
A Tongue That Doesn't Slip
Suction explains chameleons' extraordinary lingual power -
Mysteries of Sex Remain
Troublesome reproductive method wasn't selected for by harmful mutations -
Prions Show Their Better Side
In yeast, they may lend evolution a helping hand -
Unearthing the Roots of Photosynthesis
The green bacteria turns out to be the oldest sun worshiper -
The Selective Power of Ultraviolet
Skin color is darkest in high-UV regions, bolstering evolutionary hypothesis -
Parasites Make Scaredy-Rats Foolhardy
Toxoplasmosis infection seems to disrupt rats' fear of cats -
His-and-Hers Hummingbird Bills
Sexual dimorphism allows them to specialize in different flowers -
Chewed Leaves Reveal Ancient Relationship
Beetles' diet of ginger plants is at least 65 million years old -
