Life
We summarize the week's scientific breakthroughs every Thursday.
- Animals
Second bird genus shares dart-frog toxins
Researchers have found a second bird genus, also in New Guinea, that carries the same toxins as poison-dart frogs in Central and South America.
- Animals
New Green Eyes: First butterfly that’s genetically modified
Scientists have genetically engineered a butterfly for the first time, putting a jellyfish protein into a tropical African species so that its eyes fluoresce green.
- Animals
Jungle Genes: First bird genome is decoded
Researchers have unveiled a draft of the first bird genome to be sequenced, a vintage chicken.
- Paleontology
Old Colonies: Ancient formations are termites’ legacy
New analyses of mysterious pillars at two sites in southern Africa suggest that the sandstone features are petrified remains of large, elaborate termite nests.
- Animals
Fox Selection: Bottleneck survivors show surprising variety
Foxes native to a California island—famous for the least genetic diversity ever reported in a sexually reproducing animal—have some variation after all.
- Animals
Feral breed lacks domestic dogs’ skill
Wild dogs that haven't lived with people for 5,000 years share little of the capacity of their domesticated cousins for interpreting human gestures.
- Ecosystems
Bird Dilemma: More seabirds killed when boats discard fewer fish
A long-term study of great skuas shows that when fishing fleets discard less fish, birds that scavenge for waste make up for the loss by increasing attacks on other seabirds.
- Animals
Flesh Eaters: Bees that strip carrion also take wasp young
A South American bee that ignores flowers and collects carrion from carcasses has an unexpected taste for live, abandoned wasp young.
- Paleontology
Early Flight? Winged insects appear surprisingly ancient
New analyses of a fossil suggest that winged insects may have emerged as early as 400 million years ago.
- Animals
How blind mole rats find their way home
The blind mole rat is the first animal discovered to navigate by combining dead reckoning with a magnetic compass.
- Animals
Where’d I Put That?
Birds that hide and recover thousands of separate caches of seeds have become a model for investigating how animals' minds work.
- Ecosystems
Mangrove Might: Nearby trees boost reef-fish numbers
Coastal mangroves give an unexpectedly important boost to reef fish.
