Biological Evolution: Unity and Diversity
- Animals
Unique dialects help naked mole-rats tell friends from foes
Computer analysis reveals that these social rodents communicate with speech patterns distinct to each colony.
- Chemistry
Let’s learn about acids and bases
Acids give away particles with positive charge. Bases accept positively charged particles. They are both critical for chemical reactions.
- Animals
A new chameleon species may be the world’s tiniest reptile
The newly described reptiles live in the northern forests of Madagascar. Deforestation there may also leave them on the brink of extinction.
- Animals
Giant worms may have hidden beneath the ancient seafloor to ambush prey
Twenty-million-year-old tunnels unearthed in Taiwan may have been home to creatures similar to today’s monstrous bobbit worms.
- Animals
How do you build a centaur?
A centaur has the torso of a human and the body of a horse. It may sound cool, but it wouldn’t work very well.
- Animals
Harsh Ice Age winters may have helped turn wolves into dogs
In the Ice Age, Arctic hunters may have turned to some game for their fatty bones. Much of those animals’ meat might have been left to domesticate dogs.
- Health & Medicine
Early details emerge about the new U.K. coronavirus variant
The variant may spread more easily from person to person. That could make continuing to wear masks all the more important, experts say.
- Animals
Scientists Say: Medullary bone
Medullary bone is a layer that forms inside bird and dinosaur bones. It’s a source of the calcium in eggshells.
- Animals
Around the world, birds are in crisis
Human activities around the world are threatening bird species. Numbers of even some of the most common species are starting to fall.
- Archaeology
This prehistoric woman from Peru hunted big game
Women in the Americas speared large prey as early as 9,000 years ago, new archaeological evidence suggests.
- Animals
Scientists Say: Evolution
Evolution is how species change over time. Individuals in the group vary, and some will pass on their genes. Over time, the whole species changes.
- Animals
Attack of the inner-cannibal mega-shark
The outsized megalodon was a fierce terror that chewed its way across the oceans. It learned to kill even before it was born.
