Livescience Livescience
Sign in
  • View Profile
  • Sign out
  • Animals
    • Aquatic animals
      • Fish
      • Sharks
      • Mollusks
      • Octopuses
      • Squids
    • Reptiles, amphibians, insects and arachnids
      • Reptiles
      • Snakes
      • Turtles and tortoises
      • Lizards
      • Amphibians
      • Alligators and crocodiles
      • Spiders and other arachnids
      • Insects
    • Mammals
      • Bears
      • Cats
      • Dogs
      • Elephants
      • Primates
      • Dolphins
      • Orcas
      • Whales
    • Birds
    • Extinct species
      • Dinosaurs
      • Mammoths
  • Archaeology
    • Human evolution
      • Neanderthals
    • Regions
      • The Americas
      • Ancient China
      • Middle East
    • Cultures
      • Romans
      • Vikings
      • Ancient Egyptians
  • Health
    • The human body
      • Aging
      • Allergies
      • Anatomy
      • Exercise
      • Food and drink
      • Genetics
      • Heart and circulation
      • Immune system
      • Medicine and drugs
      • Neuroscience
      • Reproductive health
      • Sex
      • Sleep
      • Surgery
    • Viruses, infections and disease
      • Alzheimer's and dementia
      • Bacterial and fungal infections
      • Cancer
      • Coronavirus
      • Flu
      • HIV
    • Human behavior
      • Arts and entertainment
      • Conspiracies and paranormal
      • Education
      • Psychology
    • Mathematics
    • Particle physics
    • Quantum physics
    • Chemistry
  • Planet Earth
    • Earth science
      • Earthquakes
      • Volcanoes
      • Weather
      • Geology
    • Climate change
      • Fossil fuels
      • Nuclear energy
      • Renewable energy
      • Antarctica
      • Arctic
    • Nature
      • Plants
      • Rivers and oceans
      • Evolution
  • Space
    • Astronomy
      • Asteroids
      • Black holes
      • Comets
      • Cosmology
      • Meteoroids
      • Exoplanets
    • The solar system
      • The sun
      • The moon
      • Mercury
      • Venus
      • Mars
      • Jupiter
      • Saturn
      • Uranus
      • Pluto
    • Space exploration
      • Extraterrestrial life
      • Stargazing
      • NASA
      • Space photo of the week
  • Technology
    • Artificial intelligence
    • Communications
    • Computing
    • Mixed reality
    • Quantum computing
    • Electric vehicles
    • Engineering
    • Electronic engineering
    • Robotics
    • Products
      • Health and fitness
      • Optics
      • STEM toys and games
      • Tech and gadgets
    • By type
      • News
      • Features
      • Opinion
      • Interviews
    • More
      • About us
      • Newsletters
      • Follow us
      • Archive
  • Home
  • Animals
    • View Animals
    • Aquatic animals
      • View Aquatic animals
      • Fish
      • Sharks
      • Mollusks
      • Octopuses
      • Squids
      • Reptiles
      • Snakes
      • Turtles and tortoises
      • Lizards
      • Amphibians
      • Alligators and crocodiles
      • Spiders and other arachnids
      • Insects
      • Bears
      • Cats
      • Dogs
      • Elephants
      • Primates
      • Dolphins
      • Orcas
      • Whales
    • Birds
    • Extinct species
      • View Extinct species
      • Dinosaurs
      • Mammoths
  • Archaeology
    • View Archaeology
    • Human evolution
      • View Human evolution
      • Neanderthals
      • The Americas
      • Ancient China
      • Middle East
      • Romans
      • Vikings
      • Ancient Egyptians
  • Health
    • View Health
      • Aging
      • Allergies
      • Anatomy
      • Exercise
      • Food and drink
      • Genetics
      • Heart and circulation
      • Immune system
      • Medicine and drugs
      • Neuroscience
      • Reproductive health
      • Sex
      • Sleep
      • Surgery
      • Alzheimer's and dementia
      • Bacterial and fungal infections
      • Cancer
      • Coronavirus
      • Flu
      • HIV
    • Human behavior
      • View Human behavior
      • Arts and entertainment
      • Conspiracies and paranormal
      • Education
      • Psychology
    • Mathematics
    • Particle physics
    • Quantum physics
    • Chemistry
  • Planet Earth
    • View Planet Earth
      • Earthquakes
      • Volcanoes
      • Weather
      • Geology
    • Climate change
      • View Climate change
      • Fossil fuels
      • Nuclear energy
      • Renewable energy
      • Antarctica
      • Arctic
      • Plants
      • Rivers and oceans
      • Evolution
  • Space
    • View Space
    • Astronomy
      • View Astronomy
      • Asteroids
      • Black holes
      • Comets
      • Cosmology
      • Meteoroids
      • Exoplanets
    • The solar system
      • View The solar system
      • The sun
      • The moon
      • Mercury
      • Venus
      • Mars
      • Jupiter
      • Saturn
      • Uranus
      • Pluto
    • Space exploration
      • View Space exploration
      • Extraterrestrial life
      • Stargazing
      • NASA
      • Space photo of the week
  • Technology
    • View Technology
    • Artificial intelligence
    • Communications
    • Computing
    • Mixed reality
    • Quantum computing
    • Electric vehicles
    • Engineering
    • Electronic engineering
    • Robotics
    • Products
      • View Products
      • Health and fitness
      • Optics
      • STEM toys and games
      • Tech and gadgets
      • News
      • Features
      • Opinion
      • Interviews
      • About us
      • Newsletters
      • Follow us
      • Archive
  • Sign up for our newsletters Newsletter
  • RSS
    Trending
    • Dire climate change health impacts
    • NASA's Swift rescue mission fails
    • Are peptides safe?
    • Black hole star
    • Live Science Pro

    When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

    Jill Scharr

    Staff Writer
    Knightscope's K5 robot security guard
    Real-Life 'RoboCop' May Be Coming to a Street Near You

    robotics
    • klingon ship slingshotting around the sun in Star Trek IV.
      The 7 Silliest Time Travel Concepts in Science Fiction

      Time travel is still a mystery, but it's probably safe to say these seven sci-fi stories totally missed the mark.

      By Jill Scharr Published 27 October 13

      conspiracies-paranormal
    • book cover for Professor Astro Cat's Frontiers of Space
      Science Gets Graphic in New Comic Books

      From biography to children's books to science fiction, graphic novels featured in a panel at this year's Comic Con all share a strong focus on storytelling that's based on real science.

      By Jill Scharr Published 17 October 13

      human-behavior
    • An x-ray reveals a pacemaker inside a chest.
      Hack-Proof Pacemakers: Code Based on Heartbeat Could Thwart Disruption

      By Jill Scharr Published 8 October 13

      heart-circulation
    Useful links
    Feed your curiosity
    • Life's Little Mysteries
    • Earth from space
    • Diagnostic dilemmas
    • Astonishing artifacts
    Grow your knowledge
    • Jaw-dropping James Webb Space Telescope images
    • Amazing women in science and math
    • Explore the periodic table of elements
    • Uncanny facial reconstructions from history
    Science in your life
    • Science quizzes and games
    • Beginner's guide to wildlife photography
    • The best telescopes for spotting stars and planets
    • Mind-blowing science facts
    Ls Logo

    Live Science is part of Future US Inc, an international media group and leading digital publisher. Visit our corporate site.

    Add as a preferred source on Google Add as a preferred source on Google
    • Accessibility Statement
    • Contact Future's experts
    • About Us
    • Terms and conditions
    • Privacy policy
    • Cookies policy
    • Advertise with us
    • Web notifications
    • Careers
    • Editorial standards
    • How to pitch a story to us

    © Future US, Inc. Full 7th Floor, 130 West 42nd Street, New York, NY 10036.

    Please login or signup to comment

    Please wait...