Science

Research, discovery, and the natural world.

Science · 4 days ago · Science Daily

These insect submariners survive depths that should crush them

Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material called resilin lets them expand or shrink the sacs by changing their pH. Their toughness challenges a popular explanation for why insects are absent from the open ocean.

Science · 4 days ago · Science Daily

Your dreams aren’t random. Your brain is rewriting reality

Dreams are not random mental noise. A large study of more than 3,700 dream and waking reports found that what we experience during sleep is shaped by both our personalities and the world around us. Rather than simply replaying daily events, the dreaming brain mixes memories, emotions, imagined possibilities, and familiar settings into vivid new scenarios.

Science · 4 days ago · Science Daily

Scientists reveal what sparkling water really does to your teeth

Unsweetened sparkling water may offer a tooth-friendlier alternative to sugary soda, according to a small preliminary study tracking how different drinks change mouth acidity. Soda caused the strongest and longest drop in salivary pH, while sparkling water produced only a temporary decline before saliva restored normal conditions. Importantly, acidity remained above the level associated with enamel damage.

Science · 4 days ago · Science Daily

Eating within 8 hours may help keep the aging brain sharp

Eating within a shorter daily window may help protect certain thinking skills as people age. In a small six-month trial, older women who limited eating to about 8 to 9 hours a day performed better on planning and problem-solving tests than those who ate over 12 hours. Both groups lost similar amounts of weight, hinting that when people eat could matter in addition to how much they eat.

Science · 5 days ago · Science Daily

The best way to save giant sequoias may be more fire

Giant sequoias are built to withstand ordinary fires, but recent extreme wildfires killed thousands of trees that had survived for centuries or even millennia. A new analysis of about 26,400 sequoias found that trees in areas treated with prescribed burns were nearly four times more likely to survive. Researchers estimate the controlled fires prevented about 1,900 deaths and could have saved thousands more if used across every grove.