Batting Around Echolocation
New study reaffirms that echolocation evolved twice in bats
Evolution
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How to Tell Evolutionary Time
Molecular clock controversy keeps on ticking -
Spotting Keys to Evolution
Variation in butterfly eyespots linked to small gene changes -
Rapid Adaptation Yielded Finches New Territory
New colonists choose the sex of their chicks to give them an edge -
Nothing to Bite On
Ancient jawless fish may not have all been ruthlessly evolving -
Extinctions Heal Slowly
Biodiversity can decline fast but is slow to recover, study finds -
Ancient Technique Modernizes Mammalian Family Tree
Placental mammals' evolutionary history redrawn, quartered -
Molecular Clocks Not Exactly Swiss
DNA-dating of evolution may not be possible after all -
Death Comes to the Hermaphrodites
Predatory weevils with a taste for bisexual flowers shape a plant species -
Slug Sex Shocker
Even hermaphrodite mating behavior may be driven by sexual selection -
Elephant Species Splits in Two
Wide genetic gap divides forest- and savanna-dwelling populations -
Land Plants' History Rewritten
DNA pushes back the age of the first plants -
New Clues to Malaria's Origin
Study traces parasite's origins to the dawn of agriculture -
Autumn Leaves, a Secret Sign?
Brilliant foliage may advertise trees' resistance to pests -
Fossils From the Dawn of Humanity
New find may represent the earliest known human ancestors -
Water Bugs Flee the Flood
Insects give an old behavior a new twist
