Ecosystems
- Animals
Pea aphid youngsters use piggyback rides to escape a crisis
When some mammal is about to munch their plant, aphids drop to the ground and youngsters want a ride to safety.
- Ecosystems
Beavers are engineering a new Alaskan tundra
Climate change has enabled the recent expansion of beavers into northwestern Alaska, a trend that could have major ecological consequences for the region in the coming decades.
- Agriculture
50 years ago, screwworm flies inspired a new approach to insect control
The United States has wiped out screwworm flies repeatedly since 1966 using the sterile male eradication technique.
- Ecosystems
How mammoths competed with other animals and lost
Mammoths, mastodons and other ancient elephants were wiped out at the end of the last ice age by climate change and spear-wielding humans.
- Life
Eating less protein may help curb gut bacteria’s growth
A new study in mice and 30 mammal species hints at what controls the types and amounts of gut microbes, which can contribute to health and disease.
- Ecosystems
How researchers flinging salmon inadvertently spurred tree growth
Scientists studying salmon in Alaska flung dead fish into the forest. After 20 years, the nutrients from those carcasses sped up tree growth.
- Animals
If you want to believe your home’s bug free, don’t read this book
‘Never Home Alone’ reveals the hidden world living in human-made spaces.
- Paleontology
The first vertebrates on Earth arose in shallow coastal waters
After appearing about 480 million years ago in coastal waters, the earliest vertebrates stayed in the shallows for another 100 million years.
- Animals
How a snake named Hannibal led to a discovery about cobra cannibalism
Scientists discovered that cobras in southern Africa eat each other more often than thought. And that may be true for cobras in other places as well.
- Genetics
In lab tests, this gene drive wiped out a population of mosquitoes
For the first time, a gene drive caused a population crash of mosquitoes in a small-scale test.
- Ecosystems
Confused mayflies wreak havoc on a Pennsylvania bridge
Cleaning a river in central Pennsylvania brought back mayflies, which now pose a threat to motorists crossing a bridge.
- Animals
A gentoo penguin’s dinner knows how to fight back
Cameras attached to gentoo penguins off the Falkland Islands revealed that, despite the birds’ small size, their lobster krill prey can sometimes win in a fight.
