Biology

175 articles with this tag

What Is the Green Sahara—and Why Did It Vanish? Science

What Is the Green Sahara—and Why Did It Vanish?

The world's largest hot desert was once a lush landscape of lakes, rivers, and grasslands. Scientists call this era the African Humid Period, and new...

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How Bacteria Share Antibiotic Resistance—Gene by Gene Science

How Bacteria Share Antibiotic Resistance—Gene by Gene

Bacteria swap resistance genes through horizontal gene transfer—conjugation, transduction, and transformation—spreading drug-proof traits across speci...

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How the Replication Crisis Works—and Why It Shakes Science Science

How the Replication Crisis Works—and Why It Shakes Science

Half of social-science findings cannot be reproduced by independent researchers, exposing deep structural problems in how studies are published, funde...

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How Ticks Spread Disease—From Bite to Bloodstream Health

How Ticks Spread Disease—From Bite to Bloodstream

Tick-borne diseases affect hundreds of thousands of people each year. Here's how these tiny arachnids transmit pathogens, which diseases they carry, w...

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What Is Nanotyrannus—and Why It's Not a Baby T. Rex Science

What Is Nanotyrannus—and Why It's Not a Baby T. Rex

For decades, paleontologists argued whether small tyrannosaur fossils belonged to juvenile T. rex or a separate species. Multiple studies now confirm...

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What Is the Ocean Methane Paradox—and Why It Matters Science

What Is the Ocean Methane Paradox—and Why It Matters

Scientists have long puzzled over why oxygen-rich ocean surface waters produce methane, a gas normally made only in oxygen-free environments. The answ...

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Do Crustaceans Feel Pain? What Science Says Science

Do Crustaceans Feel Pain? What Science Says

Growing scientific evidence suggests lobsters, crabs, and shrimp may experience pain and sentience, prompting new animal welfare laws worldwide and re...

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What Is Epstein-Barr Virus and Why Does It Cause Disease? Science

What Is Epstein-Barr Virus and Why Does It Cause Disease?

Epstein-Barr virus infects roughly 95% of adults worldwide, hides in immune cells for life, and is linked to multiple sclerosis, several cancers, and...

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How Chagas Disease Works—and Why It Hides for Decades Health

How Chagas Disease Works—and Why It Hides for Decades

Chagas disease infects roughly 8 million people worldwide and kills more than 10,000 each year, yet most carriers never know they have it. Here's how...

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How Urban Evolution Works—Animals Adapting to Cities Science

How Urban Evolution Works—Animals Adapting to Cities

Cities are driving rapid genetic and behavioral changes in wildlife. From lizards with bigger toe pads to mice that digest junk food, urban evolution...

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How the Oral Microbiome Works—and Why It Affects Your Whole Body Health

How the Oral Microbiome Works—and Why It Affects Your Whole Body

The human mouth harbors over 700 species of microorganisms that do far more than cause cavities. The oral microbiome influences heart disease, Alzheim...

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How Gray Whale Migration Works—the Longest on Earth Science

How Gray Whale Migration Works—the Longest on Earth

Gray whales travel up to 14,000 miles each year between Arctic feeding grounds and Mexican breeding lagoons, navigating by Earth's magnetic field and...

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