All Stories by Susan Milius
- Animals
Big monarch caterpillars don’t avoid toxic milkweed goo. They binge on it
Instead of nipping milkweed to drain the plants’ defensive sap, older monarch caterpillars may seek the toxic sap. Lab larvae guzzled it from a pipette.
- Life
These snails give live birth, and it’s the babies that may do the labor
Protecting eggs in mom’s body may have given rough periwinkle snails an advantage over egg-laying cousins, letting them spread to far more coastline.
- Animals
Ant face patterns like swirls and stubble might have practical value
Reviewing thousands of ant photos hints that facial surface patterns might offer benefits, like structural support or abrasion protection.
- Life
Faking death lets some female frogs slip the mating grip of a male
Suddenly looking dead, grunting like a guy or vigorously rotating can help female frogs survive mating balls in species with aggressively grabby males.
- Microbes
Watch: Recent microbial discoveries are changing our view of life on Earth
Videos capture the strange movements and predatory styles of protists — among the closest microbial cousins to multicellular life.
- Life
‘Polyester bees’ brew beer-scented baby food in plastic cribs
Ptiloglossa bees’ baby food gets its boozy fragrance from fermentation by mysteriously selected microbes.
- Life
Honeybees waggle to communicate. But to do it well, they need dance lessons
Young honeybees can’t perfect waggling on their own after all. Without older sisters to practice with, youngsters fail to nail distances.
- Life
Orca moms baby their adult sons. That favoritism pays off — eventually
By sharing fish with their adult sons, orca moms may skimp on nutrition, cutting their chances of more offspring but boosting the odds for grandwhales.
- Life
How plant ‘muscles’ fold up a mimosa leaf fast
A mimosa plant revs up tiny clumps of specially shaped cells that collapse its leaflets, though why isn’t clear.
- Science & Society
Meet the first Black American to earn an evolutionary biology Ph.D.
In ‘A Voice in the Wilderness,’ Joseph L. Graves Jr. discusses his scientific journey, how he debates racists, and more.
- Life
Sleeping glass frogs hide by storing most of their blood in their liver
Glass frogs snoozing among leaves blend in by hiding almost all their red blood cells in their liver until the tiny animals wake up.
- Life
Long genital spines on male wasps can save their lives
A male wasp’s genital spines can save his life in an encounter with a scary tree frog, a new study shows.
