Fleas

Plague still exists—but what threat does it pose to humans today?

Plague still exists—but what threat does it pose to humans today?

Plague still exists—but what threat does it pose to humans today?

A quiet plague outbreak has been killing Yellowstone’s cougars for years

A quiet plague outbreak has been killing Yellowstone’s cougars for years

A quiet plague outbreak has been killing Yellowstone’s cougars for years

Maybe Rats Aren't to Blame for the Black Death

Maybe Rats Aren't to Blame for the Black Death

Maybe Rats Aren't to Blame for the Black Death

Mysterious Flesh-Eating Sea Creature Causes Shocking Injury

Mysterious Flesh-Eating Sea Creature Causes Shocking Injury

Mysterious Flesh-Eating Sea Creature Causes Shocking Injury

Fleas Hitch Ride on Earwigs to Suck Bat Blood

Fleas Hitch Ride on Earwigs to Suck Bat Blood

Fleas Hitch Ride on Earwigs to Suck Bat Blood

How Do Fleas Jump? New Video Solves Mystery

How Do Fleas Jump? New Video Solves Mystery

How Do Fleas Jump? New Video Solves Mystery

It was no small task, but researchers have used high-speed video to solve how the insects jump—by taking off from their toes.

Legal

Terms of Use
Privacy Policy
Your US State Privacy Rights
Children's Online Privacy Policy
Interest-Based Ads
About Nielsen Measurement
Do Not Sell or Share My Personal Information

Our Sites

Nat Geo Home
Attend a Live Event
Book a Trip
Buy Maps
Inspire Your Kids
Shop Nat Geo
Visit the D.C. Museum
Watch TV
Learn About Our Impact
Support Our Mission
Masthead
Press Room
Advertise With Us

Join Us

Subscribe
Customer Service
Renew Subscription
Manage Your Subscription
Work at Nat Geo
Sign Up for Our Newsletters
Contribute to Protect the Planet

Follow us

Copyright © 1996-2015 National Geographic SocietyCopyright © 2015-2025 National Geographic Partners, LLC. All rights reserved