News
- Earth
Nanosponges: Plastic particles pick up pollutants
Nanometer-scale polymer particles can extract pollutants from contaminated soil.
- Earth
Catching Waves: Ocean-surface changes may mark tsunamis
A new theoretical model that describes a tsunami's interaction with winds may explain enigmatic observations associated with the waves and could lead to a technique for spotting them long before they hit shore.
- 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.
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Neural Aging Walks Tall: Aerobic activity fuels elderly brains, minds
Moderate amounts of regular walking improve brain function and attention in formerly sedentary seniors.
