6,896 results
6,896 results for: Bears
- Health & Medicine
Outwitting TB: Enhanced vaccine protects mice in lab tests
An enhanced vaccine appears to offer better protection against tuberculosis than the current version does, a study in mice suggests.
- Anthropology
Reservoirs of Evolution: Rainy periods linked to human origins in Africa
Three phases of heavy rainfall in eastern Africa between 2.7 million and 900,000 years ago created deep lakes and might have played a critical role in the evolution of human ancestors.
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Bitty Beasts of Burden: Algae can carry cargo
Scientists have devised a way to make single-cell algae bear loads over distances of several centimeters, a tactic that could prove useful in tiny machines.
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Turning Back Time: Embryonic stem cell rejuvenates skin cell
By fusing an embryonic stem cell with an adult skin cell, researchers have created cells that retain valuable embryonic characteristics but carry the adult cell's genes.
- Astronomy
Most distant galaxy discovered
Astronomers have observed a galaxy as it existed 700 million years after Big Bang.
- Animals
Myna birds don’t benefit from brainstorming
Mynas birds are actually a lot worse at problem solving when working in a group.
- Health & Medicine
For babies, walking opens a whole new world
Walking and talking are linked as babies develop, anecdote and data show.
- Earth
This pollutant fights lupus
A hormone-mimicking pollutant that leaches out of some plastics appears to fight lupus.
- Chemistry
Nanoscale Networks: Superlong nanotubes can form a grid
Researchers have made extraordinarily long carbon nanotubes and aligned them to create tiny transistors and sensors for detecting chemical and biological agents.
- Anthropology
Jaw-dropping find emerges from Stone Age cave
A nearly complete lower jaw discovered in a Romanian cave last year and dating to around 35,000 years ago may represent the oldest known example of anatomically modern Homo sapiens in Europe.
- Chemistry
Drug smugglers leave cellular tracks
Imaging reveals where some experimental nanoscale capsules ferry drugs when they enter cells.
- Earth
Sticky Situation: Nonstick surfaces can turn toxic at high heat
Nonstick cookware can, if overheated, sicken people and kill birds, according to a new analysis of research published over the past 40 years.
