Animals
Lions have a second roar that scientists have only just discovered
This insight from machine-learning analyses of recordings of calls in the wild might help detect where lions are declining.
By Elie Dolgin
HS-LS2-2
Use mathematical representations to support and revise explanations based on evidence about factors affecting biodiversity and populations in ecosystems of different scales.
More Stories in HS-LS2-2
- Animals
Analyze This: Some bats feast on songbirds midflight
Sensor data reveal greater noctule bats chasing, catching and chewing on birds during nighttime hunts.
- Life
Scientists Say: Benthic
This ecological region teems with life — from coral to insect larvae to crabs.
- Animals
Parrotfish shape the future of coral reefs, one bite at a time
Could these colorful fish aid struggling coral? Yes, but not always. Parrotfish play a complex role in reefs — and sometimes may cause harm.
- Planets
The desert planet in ‘Dune’ is pretty realistic, scientists say
Humans could live on the fictional planet Arrakis from Dune. But thankfully giant sandworms probably could not.
- Animals
Surprise! These animals can help fight climate change
Some animals help fight climate change by boosting the amount of carbon dioxide that plants, algae and bacteria absorb from the atmosphere.
- Environment
To limit pollution, new recipe makes plastic a treat for microbes
Microplastics made from fossil fuels take centuries to disappear. But the plant- and algae-based plastic can break down in weeks to months.
- Chemistry
Air pollution can make it harder for pollinators to find flowers
Pollutants that build up in night air can break down the scents that attract pollinating hawkmoths to primrose blooms, disrupting their pollination.
- Plants
Rampaging vines are slowly strangling tropical forests
Called lianas,these vines are growing out of control. They may cause tropical forests to absorb less carbon dioxide — worsening climate change.
- Plants
This urban gardener is mimicking nature to create healthier plants
Urban garden specialist Kwesi Joseph is experimenting with rock dust and plants. He also helps New York City community and school gardens with gardening problems.
