Wildebeest leaping in to water to cross the Mara river, this is part of the annual migration.

Wildebeest running out of the Mara river on their annual migration.

Wildebeest leaping in to water to cross the Mara river, this is part of the annual migration.

Wildebeest leaping in to water to cross the Mara river, this is part of the annual migration.

Wildebeest leaping in to water to cross the Mara river, this is part of the annual migration.

Rutting bulls fight for dominance

Waterbuck showing characteristic white ring on rump

Wildebeest leaping in to water to cross the Mara river, this is part of the annual migration.

Aerial view of wildebeest trapped by high cliffs while crossing the Mara river.

Waterbuck at sunrise in misty flooded woodland

Rutting bulls fight for dominance

Aerial view of wildebeest trapped by high cliffs while crossing the Mara river.

Male magnificent frigatebird during breeding season - Galapagos Islands

Male magnificent frigatebird during breeding season - Galapagos Islands

Crab-eating macaque mother and child at a breeding facility likely to be sold to laboratories, Laos

Crab-eating macaque mother and child at a breeding facility likely to be sold to laboratories, Laos

Crab-eating macaques held at a breeding facility likely to be sold to laboratories, Laos

Crab-eating macaques held at a breeding facility likely to be sold to laboratories, Laos

Frightened crab-eating macaques held at a breeding facility likely to be sold to a laboratory, Laos

Frightened crab-eating macaques held at a breeding facility likely to be sold to a laboratory, Laos

Crab-eating macaques held at a breeding facility likely to be sold to laboratories, Laos

Crab-eating macaque held at a breeding facility likely to be sold to a laboratory, Laos

Crab-eating macaques held at a breeding facility likely to be sold to laboratories, Laos

Crab-eating macaques held at a breeding facility likely to be sold to laboratories, Laos