You need the Flash Player version 10.1.0.0 or higher and a JavaScript enabled browser to view this site.

Bear Dog

The powerful carnivore Amphicyon gets its nickname from the combination of a bear's strength with the ferocious tenacity of a fighting dog.

Playlists

(1 - 4 of 6)
  • Play Prehistoric Dallas
    5 Clips Playlist Prehistoric Dallas

    (08:18)

    See why even millions of years ago, it was always bigger in Texas - from scimitar-toothed cats, the largest ocean-going reptile ever and an armadillo as big as a car.
  • Play Prehistoric Washington DC
    5 Clips Playlist Prehistoric Washington DC

    (08:48)

    See what lived in the Washington DC area before all the monuments, including dinosaurs, the ferocious Bear Dog and the huge Megalodon shark.
  • Play Prehistoric Los Angeles
    5 Clips Playlist Prehistoric Los Angeles

    (09:29)

    From saber-tooth cats to duck-bill dinosaurs, see the ancient animals that once called Los Angeles home.
  • Play Prehistoric Denver
    4 Clips Playlist Prehistoric Denver

    (06:59)

    From Triceratops and Tyrannosaurus to the nasty Terminator Pig and giant sea beasts, see what lived long before in prehistoric Denver.

Discovery Channel Clips

  • Play Prehistoric Denver: Coors Field Dino
    Coors Field Dino

    Prehistoric Denver (01:43)

    The Denver area's most common dinosaur fossil is Triceratops who walked the 66-million-year-old Cretaceous forests that once flourished where Coors Field now stands.
  • Play Prehistoric Sharks: Megalodon
    Megalodon

    Prehistoric Sharks (03:26)

    Megalodon: Precursor to the Great White
  • Play Prehistoric Los Angeles: A Real Hollywood Monster
    A Real Hollywood Monster

    Prehistoric Los Angeles (01:46)

    Long-necked Elasmosaurus ruled the ancient seas that covered Los Angeles 100 million years ago.
  • Play Prehistoric Denver: Terminator Pig
    Terminator Pig

    Prehistoric Denver (01:39)

    The fanged, pig-like Archaeotherium was the predatory terror of ancient Colorado 37 million years ago.
  • Play Prehistoric Washington DC: Mega Shark
    Mega Shark

    Prehistoric Washington DC (02:00)

    One of the most powerful ocean predators of all time, the giant shark Megalodon could reach lengths of over 50 feet and actively attacked large prey like dolphins and whales.
  • Play Prehistoric Los Angeles: Hadrosaur Honking
    Hadrosaur Honking

    Prehistoric Los Angeles (02:08)

    Eighty million years ago it wasn't cars making all the noise, but herds of hadrosaurs doing the duck-bill honk.
  • Play Prehistoric New York: Ancient Hunter
    Ancient Hunter

    Prehistoric New York (02:11)

    Prowling New Jersey's Meadowlands 220 million years ago was the fearsome Postosuchus that hunted like a crocodile on speed.
  • Play Prehistoric Denver: Plesiosaur Sea
    Plesiosaur Sea

    Prehistoric Denver (01:38)

    Long-necked marine reptiles called plesiosaurs hunted the waters of the Western Interior Seaway that once covered much of central North America.
  • Play Prehistoric Los Angeles: Death By Tar Pit
    Death By Tar Pit

    Prehistoric Los Angeles (02:10)

    The famous La Brea Tar Pits have trapped over three million fossils to produce a unique snapshot of life during the last Ice Age.
  • Play Prehistoric Denver: Mile High Mammoths
    Mile High Mammoths

    Prehistoric Denver (01:59)

    The broad, high grasslands around Denver were the perfect habitat for huge Columbian mammoths and the Paleo-Indians who hunted them.
  • Play Prehistoric Los Angeles: Saber-Tooth Trap
    Saber-Tooth Trap

    Prehistoric Los Angeles (01:37)

    Lured by the promise of an easy kill, a saber-tooth cat makes a fatal mistake by pouncing on a mammoth trapped in a tar pit.
  • Play Prehistoric New York: Giant Short-faced Bear
    Giant Short-faced Bear

    Prehistoric New York (01:48)

    Larger than a grizzly and with the agility of a cat, this Ice Age bear could take on any prey.
 

Dinosaurs, large mammals and other ancient creatures once roamed America but very few realize that these creatures lived on the same expanses of land where we've built our cities and landmarks. Go back down the spiral of time to see what stood, lived, fought and died in your backyard millions of years ago.

 
 

our sites

video

 

mobile

shop

stay connected

corporate

Image Credits DCL

Copyright © 2012 Discovery Communications, LLC. The number-one nonfiction media company.