Pete Oxford / Bottle Mountain rising out of rainforest, Rupununi, Guyana

Suzi Eszterhas / Tasmanian Devil (Sarcophilus harrisii) conservationist, Wade Anthony, bottle-feeding four-month old baby devil, Devils at Cradle, Cradle Mountain-Lake Saint Clair National Park, Tasmania, Australia

Pete Oxford / Bottle (Battle) Mountain, a granite outcrop in South Rupununi savanna, Guyana, South America

Pete Oxford / Bottle Mountain rising out of rainforest, Rupununi, Guyana

Pete Oxford / Bottle Mountain rising out of rainforest, Rupununi, Guyana

Oriol Alamany / Hiker filling bottle with water from a mountain spring in Trevelez Valley in Las Alpujarras, Sierra Nevada National Park, Granada, Andalucia, Spain, Model released.

David Noton / Man taking a drink from a water bottle and woman on mountain bikes cycling on Hambledon Hill above the Blackmore Vale, Dorset, England, UK

Tui De Roy / Bottlenose Dolphin (Tursiops truncatus) adult leaping, Volcan Ecuador, Isabella Island, Galapagos Islands, Ecuador