Biology

Secret to longevity is in the microbiome and the gut, shows new study

Secret to longevity is in the microbiome and the gut, shows new study

Experiments in fruit flies show increased lifespan thanks to a combination of probiotics and an herbal supplement You are what you eat. Or so the...
A weird thing happened to men about 7,000 years ago

A weird thing happened to men about 7,000 years ago

Starting about 7,000 years ago, and extending over the next two millennia, recent studies suggest, the genetic diversity of men—specifically, the diversity of their...
How did human brains get so large

How did human brains get so large?

Genes found only in humans influence brain size A set of three nearly identical genes found only in humans appear to play a critical role...
Ants provide clues to why biodiversity is higher in the tropics

Ants provide clues to why biodiversity is higher in the tropics

It's a puzzle that has confounded biologists for centuries: The earth's tropical regions are home to an enormous variety of plant and animal species, but...
Men and women have opposite genetic alterations in depression

Men and women have opposite genetic alterations in depression

Men and women with major depressive disorder (MDD) have opposite changes in the expression of the same genes, according to a new postmortem brain...
Great Barrier Reef has suffered five death events over 30,000 years, says new study

Great Barrier Reef has suffered five death events over 30,000 years, says new study

A landmark international study of the Great Barrier Reef has shown that in the past 30,000 years the world’s largest reef system has suffered...
Why caffeine doesn’t leave everybody wired

Why caffeine doesn’t leave everybody wired

Not everyone responds to coffee in the same way. Depending on your genetic make-up, you might be able to drink coffee right before bed or...
Broccoli in space How probiotics could help grow veggies in microgravity

Broccoli in space: How probiotics could help grow veggies in microgravity

Astronauts at the International Space Station are spending more time away from Earth, but they still need their daily serving of vegetables. Six broccoli...

What if we’re not Earth’s first big civilization?

How do we really know that there weren’t civilizations on Earth before ours? A new paper addresses this question. Imagine if, many millions of years...
Study identifies more than a hundred new genes that determine hair color

Study identifies more than a hundred new genes that determine hair color

A team of scientists, led by academics from King's College London and Erasmus MC University Medical Center Rotterdam, have discovered 124 genes that play...