Life
We summarize the week's scientific breakthroughs every Thursday.
- Ecosystems
Plants hitch rides with box turtles
In the pine rocklands of southern Florida, at least nine plant species find new homes by traveling through a turtle's gut.
- Plants
Sunflower genes don’t fit pattern
Comparison between crop and wild sunflower genes suggests that the plant followed an easy route to domestication.
- Animals
Male butterflies are driven to drink
Monarch butterflies that winter in California, especially males that had a demanding day, search out dewdrops as a water source.
- Paleontology
Sea Dragons
About 235 million years ago, as the earliest dinosaurs stomped about on land, some of their reptilian relatives slipped back into the surf, took on an aquatic lifestyle, and became ichthyosaurs—Greek for fish lizards.
- Ecosystems
Tougher Weeds? Borrowed gene helps wild sunflower
Feeding concerns about developing superweeds, a test of sunflowers shows for the first time that a biologically engineered gene moving from a crop can give an advantage to wild relatives under naturalistic conditions.
- Animals
Slithering on Air: Flying snakes glide through the treetops
The paradise tree snake flies by flattening its body and slithering through the air.
- Animals
Strong Medicine: Over-the-counter remedy snags snakes
Acetaminophen—the active ingredient in Tylenol—vanquishes brown tree snakes, the bane of Guam.
- Ecosystems
Pfiesteria’s Bite: Microbe may kill fish by skinning, not poisoning
At least one kind of Pfiesteria—accused of killing fish and threatening human health—does not produce a toxin but kills by eating holes in fish's skin, some researchers say.
- Plants
Recent tree scourge poses garden threat
Lab tests suggest that a lethal disease of oak trees in California and Oregon could strike some popular garden shrubs in the rhododendron family.
- Plants
Disease outpacing control in largest chestnut patch left
An unusual test of a biological control for the blight that's killing American chestnuts doesn't look good in the largest remaining patch.
- Animals
Hyena androgens exact high cost
Blocking androgens for spotted hyenas before they're born shows that the exposure of a female fetus to male hormones normally takes a heavy physical toll when females bear their own pups.
- Animals
Deer littermates have different dads
Twin fawns may not have the same dad—the first time multiple paternity has turned up in a large, free-ranging hoofed mammal.
