Tim Fitzharris / Siberian Tiger (Panthera tigris altaica) walking through a shallow river with reflection

Tim Fitzharris / Siberian Tiger (Panthera tigris altaica) resting along water's edge

Tim Fitzharris / Siberian Tiger (Panthera tigris altaica) standing in green grass along water's edge

ASHISH & SHANTHI CHANDOLA / Tiger male beside water in Bandhavgarh National Park, India

ASHISH & SHANTHI CHANDOLA / People view tiger from elephant back. Bandhavgarh National Park India. Tiger keeping cool in water

LYNN M. STONE / Sumatran tiger swimming {Panthera tigris sumatrae} captive, occurrs SE Asia

E.A. KUTTAPAN / Bengal tiger swimming {Panthera tigris tigris} Bandhavgarh NP, Madhya Pradesh, India

E.A. KUTTAPAN / Bengal tiger drinking {Panthera tigris tigris} Bandhavgarh NP, Madhya Pradesh, India

E.A. KUTTAPAN / Tiger (Panthera tigris) male cooling in water. Bandhavgarh NP, India

E.A. KUTTAPAN / Tiger male keeping cool in water. Bandhavgarh National Park, India.

E.A. KUTTAPAN / Tiger cooling in river, Bandhavgarh National Park, Central India

Anup Shah / White Bengal tigers play fighting in water {Panthera tigris} India

LYNN M. STONE / Bengal Tiger in water. Captive. (Panthera tigris tigris)

E.A. KUTTAPAN / Tiger (Pantera tigris), female known as 'Sita', at water. Bandhavgarh NP, India

Anup Shah / Tiger cooling down in water {Panthera tigris tigris} Ranthambhore NP, Rajasthan India

E.A. KUTTAPAN / Tigers keeping cool in water, Bandhavgarh National Park, India

E.A. KUTTAPAN / Female tiger with cub drinking water, Bandhavgarh NP, India

E.A. KUTTAPAN / Tiger keeping cool in water (Panthera tigris) Bandhavgarh NP India

Barrie Britton / Sumatran tiger, juvenile in water (Panthera tigris sumatrae) Indonesia.

E.A. KUTTAPAN / Bengal tiger leaping across water {Panthera tigris tigris} Bandhavgarh NP, India

Anup Shah / White Bengal tigers play fighting in water {Panthera tigris} India

Anup Shah / White Tiger cooling in water {Panthera tigris} India

Anup Shah / Two White Tigers greeting in water {Panthera tigris} India

Anup Shah / White Tigers play fighting in water {Panthera tigris} India

Anup Shah / White Tigers play fighting in water {Panthera tigris} captive, India

Anup Shah / White Tigers play fighting in water {Panthera tigris} C India

E.A. KUTTAPAN / Tiger going into water to cool off, Bandhavgarh NP, India

E.A. KUTTAPAN / Tiger drinking in Bandhavgarh National Park, India

Suzi Eszterhas / Bengal Tiger (Panthera tigris tigris) eighteen month old cubs at waterhole, Bandhavgarh National Park, India

Suzi Eszterhas / Bengal Tiger (Panthera tigris tigris) eighteen month old cub at waterhole, Bandhavgarh National Park, India

Suzi Eszterhas / Bengal Tiger (Panthera tigris tigris) one and a half year old cub at waterhole, Bandhavgarh National Park, India

Suzi Eszterhas / Bengal Tiger (Panthera tigris tigris) female at waterhole, Bandhavgarh National Park, India

Suzi Eszterhas / Bengal Tiger (Panthera tigris tigris) one and a half year old cub cooling off at waterhole, Bandhavgarh National Park, India

Suzi Eszterhas / Bengal Tiger (Panthera tigris tigris) one and a half year old cub at waterhole, Bandhavgarh National Park, India

Suzi Eszterhas / Bengal Tiger (Panthera tigris tigris) one and a half year old cub at waterhole, Bandhavgarh National Park, India

LYNN M. STONE / Siberian tiger (Pathera tigris altaica) drinking close-up of head. Captive

Nature Production / Asian Tiger Snake {Rhabdophis tigrinus tigrinus} swimming in the rice fields, Nara, Japan, may

Theo Allofs / Bengal Tiger (Panthera tigris tigris) resting on rock in shady area near water during mid morning heat, dry season, April, Bandhavgarh National Park, India

Theo Allofs / Bengal Tiger (Panthera tigris tigris) walking in water hole to cool off, dry season, April, Bandhavgarh National Park, India

Theo Allofs / Bengal Tiger (Panthera tigris tigris) 17 month old juvenile behind leaves in cool, shady area near water hole during heat of day, dry season, Bandhavgarh National Park, India

E.A. KUTTAPAN / Bengal tiger drinking {Panthera tigris tigris} Bandhavgarh NP Madhya Pradesh India

E.A. KUTTAPAN / Two Bengal tigers beside waterhole {Panthera tigris tigris} Bandhavgarh NP India

Patricio Robles Gil / Bengal Tiger (Panthera tigris tigris) mother cooling herself by laying in shallow water, Ranthambore National Park, India

Patricio Robles Gil / Bengal Tiger (Panthera tigris tigris) cub cooling itself by laying in water, Ranthambore National Park, India

Shin Yoshino / Bengal Tiger (Panthera tigris tigris) pair cooling off in pond, India

Toby Sinclair / 5 month Bengal tiger cubs playing {Panthera tigris tigris}, Kanha, India

Nick Garbutt / Male Bengal tiger Charger {Panthera t tigris} resting in water Bandhavgarh NP India

E.A. KUTTAPAN / Bengal tiger wallowing in muddy water {Panthera tigris tigris} Bandhavgarh NP MP India

E.A. KUTTAPAN / Bengal tiger walking through wet area {Panthera tigris tigris} Bandhavgarh NP India

LYNN M. STONE / Sumatran tiger in water {Panthera tigris sumatrae} Singapore zoo (captive)