Proboscis Monkey Dominant Male Sabah #1
Suzi Eszterhas
African Elephant Calves Playing
Yva Momatiuk and John Eastcott
Proboscis Monkey Dominant Male Yawning
Suzi Eszterhas
Grey Kangaroo Males Fighting Tasmania
David Parer and Elizabeth Parer Cook
Tule Elk Bull Bugling During Rut Point
Sebastian Kennerknecht
Sumatran Orangutan Pongo Abelii
Suzi Eszterhas
Timber Wolves
Matthias Breiter
Polar Bear Males Play-fighting Hudson
Konrad Wothe
Western Lowland Gorilla Males Fighting
Konrad Wothe
Elk Bulls Fighting Yellowstone
Konrad Wothe
Polar Bear Males Fighting Hudson Bay #1
Konrad Wothe
Elephant Seal Displaying, Point Reyes
Sebastian Kennerknecht
Bighorn Sheep Glacier National Park
Sebastian Kennerknecht
Sumatran Orangutan Male Calling Gunung
Suzi Eszterhas
Tule Elk Bull Bugling During Rut
Sebastian Kennerknecht
Tule Elk Bull And Harem In Fog Point
Sebastian Kennerknecht
Elks Sparring Yellowstone Np Wyoming #1
Michael Quinton
Southern Elephant Seal Males Fighting
Konrad Wothe
Southern Elephant Seal Males Competing
Hiroya Minakuchi
Tule Elk Bull Bugling During Rut Point #1
Sebastian Kennerknecht
Southern Elephant Seal Bulls Fighting
Konrad Wothe
Polar Bear Males Fighting Hudson Bay
Konrad Wothe
Grey Kangaroo Males Fighting Tasmania #1
D. Parer & E. Parer-Cook