All Stories by Susan Milius
- Life
Iguanas’ one-way airflow undermines usual view of lung evolution
Simple-looking structures create sophisticated one-way air flow in iguana lungs, undermining old scenarios of lung evolution.
- Animals
When sweet little bees go to war
Tiny Tetragonula bees don’t sting but have strong jaws. The bees fight by biting a combatant and not letting go.
- Life
Study finds lack of evidence for infanticide link to monogamy
A new study contradicts idea that the rise of infanticide among mammals drove the evolution of monogamy.
- Life
Epic worldwide effort explores all of insect history
A whopper of a genetic analysis fits all living orders of insects into one genealogical evolutionary tree.
- Animals
Bats jam each other in echolocation battles for food
By blaring a special call at just the right instant, Mexican free-tailed bats can ruin each other’s sonar-guided swoops toward prey.
- Life
Hummingbirds take stab at rivals with dagger-tipped bills
Sharp points on the bills of male long-billed hermit hummingbirds may have evolved as weaponry.
- Life
Close look at new fungus reveals origins, spread of salamander killer
A second chytrid fungus described last year targets salamanders and may be spreading in the animal export trade.
- Plants
How female ferns make younger neighbors male
Precocious female ferns release a partly formed sexual-identity hormone, and nearby laggards finish it and go masculine.
- Animals
Hearing awful or great singing changes birds’ choice
A male bird’s serenade inspires reactions that depend on the quality of songs a female has been listening to.
- Paleontology
Extinct giant kangaroos tiptoed one leg at a time
Stiff spines, flared hips and other fossil clues suggest extinct, refrigerator-sized kangaroos stepped one hind leg at a time instead of hopping.
- Animals
Rattlesnakes tutor robot on dune climbing
Snakes sidewinding up sand inspire design improvements for robots navigating treacherous slopes.
- Animals
Baby fish are noisier than expected
Gray snapper larvae may be able to communicate in open water using tiny knocks and growls.
