Category: News
-
Earth’s Largest Waterfall Is Hidden Beneath the Ocean Near Greenland
The world’s largest waterfall is hidden beneath the sea between Greenland and Iceland. The Denmark Strait cataract is driven by cold, dense water spilling downslope.
-
The Vasa Warship Sank About 20 Minutes Into Its First Voyage
The Swedish warship Vasa sank during its maiden voyage in 1628. An unstable design, open gunports, and a gust of wind left it underwater for 333…
-
Greenland Sharks May Live 400 Years. Their Eyes Hold the Clue.
Greenland sharks may survive for centuries. Scientists used eye-lens radiocarbon to estimate one shark at 392 years, but the range is surprisingly wide.
-
Octopuses Can Taste What They Touch With Their Suckers
Octopus suckers are more than suction cups. Specialized cells help their arms detect chemical signals from the things they touch.
-
Archerfish Shoot Down Insects With Water. They Can Learn to Hit Moving Targets, Too.
Archerfish fire carefully aimed jets of water at insects above the surface, and experiments show they can learn to hit moving targets.
-
Dolphins Sleep With Half Their Brain Awake. One Eye Can Stay Open, Too.
Dolphins take turns resting one brain hemisphere while remaining able to surface and breathe. Sleeping with one eye open is real, but not quite a foolproof…
-
Ants Amputate Injured Nestmates’ Legs. The Weird Part? It Can Save Them.
Florida carpenter ants treat wounded nestmates by cleaning injuries—and sometimes amputating a leg. The choice depends on where the injury is.
-
Reindeer Eyes Reflect Gold in Summer and Deep Blue in Winter
Reindeer have a reflective layer behind the retina that shifts from golden in summer to blue in winter. It is not a seasonal change in iris…
-
Bumblebees Roll Tiny Wooden Balls for No Reward. Scientists Call It Play.
Scientists watched buff-tailed bumblebees roll wooden balls without food rewards. Their behavior met recognized criteria for animal play.
-
Glass Frogs Hide Nearly 90% of Their Red Blood Cells While Sleeping
Glass frogs become more transparent while sleeping by packing most circulating red blood cells into their livers.