Strict water restrictions come into force for millions of people in California as the US west coast continues to experience a crippling drought.

People are increasingly interested in seeing animals in natural settings, so traditional jail-like zoos are giving way to open-plan zoos, and to eco-tourism.

Barbary macaques are among the most popular tourist attractions in Gibraltar. The apes have a taste for junk food, which enables tourists to see them up close and allows scientists to easily capture them for research.

We leave the macaques in Gibraltar to travel to the Galapagos Islands to learn about marine and land iguanas.

The segment focuses on the alien striped iguanas of the Galapagos Islands, albinism in a variety of animals, and the peppered moth.

The last segment focuses on Australia. We visit the Warrawong Earth Sanctuary, where there are breeding programs to reintroduce such indigenous animals as bandicoots and quolls, creatures that came close to extinction.

The BBC looks at a new and innovative renewable energy invention, Kite Power Solutions. It is estimated that 30 kites could provide electricity for 75,000 homes.

By following honeyguides, a species of bird, people in Africa are able to locate bees’ nests to harvest honey. Research now reveals that humans use special calls to solicit the help of honeyguides and that honeyguides actively recruit appropriate human partners. This relationship is a rare example of cooperation between humans and free-living animals.

In the next 35 years, we’ll have to produce more food than all of the world’s production over the last 2000 years combined. So what will the farms of the future look like?

A British Gas video featuring Amanda Lamb with tops tips on preparing your home for the winter, including information on bleeding radiators, insulating pipes, and checking boiler pressure.

Capt. Charles Moore of the Algalita Marine Research Foundation was the first to discover the Great Pacific Garbage Patch -- an endless floating mass of plastic trash and debris. In this first of two segments, he's drawing attention to the growing, choking problem of plastic debris in our seas.

Here's the second segment of Charles Moore's sobering report on the Great Pacific Garbage Patch. In it he draws dramatic attention to the potentially catastrophic problem posed by dumping plastic debris into our in-land waterways.

With help from Fuse School, learn the basics about global warming, particularly how burning fossil fuels adds extra carbon dioxide to the atmosphere, and how this then leads to climate change.

Fuse School: To better understand the science behind global warming, it is important to first understand how the Earth's atmosphere functions. This informative video shows the role of gravity and how the electromagnetic spectrum is involved.

Danity Kane supports PeTA with their “I’d rather go naked than wear fur” campaign. Help to protect our wildlife, Nature and the environment by clicking this link before you subscribe to Yabla.