1,375 results
- Physics
Tom’s top 10 time travel movies
The lack of a credible scientific basis doesn’t stop movie makers from making films about time travel.
- Life
Many genes in dolphins and bats evolved in the same way to allow echolocation
Widespread changes scattered across the genomes of distantly related species cooperated to craft the trait.
- Life
Killer whale mama’s boys live longer
Survival benefits may explain females’ extended life span following menopause.
- Life
Ocean noise is a whale of a stressor
The post-9/11 quiet in Atlantic shipping lanes calmed the biggest marine mammals, hormone measurements suggest.
- Life
Ancestors of today’s placental mammals may never have shared the Earth with dinosaurs
A newly constructed family tree dovetails with the fossil record, but differs considerably from previous genetic studies by suggesting that placental mammals emerged after the dinosaur extinction.
- Chemistry
Supersmall lab-on-a-chip is superfast
Two-chamber nanowire device that quickly finds diagnostic molecules in blood could be a lifesaver.
- Life
Trunk in cheek, elephant mimics Korean
Novel posture lets animal imitate sounds of human words.
- Life
Polar bears older than previously thought
New analysis reveals that the Arctic species dates back to about 600,000 years ago.
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- Health & Medicine
Rare neurons found in monkeys’ brains
Cells linked to empathy and consciousness in primates may offer clues to human self-awareness.
- Humans
Noise is what ails beaked whales
Large-scale experiments reveal a sensitivity to sonar, apparently at lower levels than other species.
- Earth
Earth & Environment
Mountaintop mining, plastic fish and the return of the right whale in this week's news
