peta2: At only 16 years old, Tia Blanco is already one of the top women surfers in the world. Learn how her vegan diet has helped Tia surf her way to the top!

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 this segment, we learn about the role weather plays in the creation of rock formations in the national parks of the United States.

The BBC reports on a floating wind turbine that could help provide power to remote communities. This helium-filled device is known as "the bat."

Here is a short animated video about the importance of fisheries for food security, health and growth in developing countries, highlighting the commitment of the EU to helping promote sustainable management of seafood resources and inclusive opportunities for trade and growth.

This video takes a look at hydrothermal vents and the novel life forms that thrive there in the absence of sunlight, fueled by underwater volcanoes. One of these harsh environments is the Axial Seamount off the West Coast of the United States.

Greentraveller's Richard Hammond shows you some of the loveliest and greenest spots in London, and gives some tips for navigating through the city.

A film about the global sustainability work of The Prince's Charities, founded by HRH The Prince of Wales.

WWF marine advocate Bob Zuur out at night on penguin patrol as part of the Oiled Wildlife Response team.

A greeting by Michael Reynolds, Earthship Biotecture and THE Garbage Warrior. See more at garbagewarrior.com – and order the DVD.

The Prince of Wales has set up a rainforest project in order to protect the remaining rainforests on this earth. He talks about the seriousness of climate change and how it will affect our lives and the lives of our children and grandchildren. He appeals to us to support him and his project.

Arizona’s Saguaro National Park was created to save the iconic and increasingly rare saguaro cactus from extinction. Within the park’s desert scenery, conflicts arise between species and can often resemble an Old West showdown at high noon!

Yosemite’s mountain peaks are already capped with snow and a mist rolls through the valleys. The coyote’s mating season begins as winter starts, and the bobcat mother will soon leave her young to fend for themselves.

Yosemite’s trees and animals have adapted to endure the occasional wildfire and the extreme changing of the seasons. In September, marmots prepare their burrows for hibernation and the deer are full of energy as the annual rut approaches.

In the lower valley, a foraging black bear attacks a colony of ants, which quickly rally to defend themselves. At its driest in summer and fall, the park is at the mercy of forest fires. One of the largest ever, the Rim Fire, broke out in the autumn of 2013, and burned out of control for over ten weeks.

It’s June, and Yosemite has come alive with noise and vibrant colors. The meadow flowers are in bloom, the bobcat kittens are almost full-grown, and the park’s unique amphibian and rodent populations emerge from their winter rest.

The imposing rock faces of Yosemite are very popular with sport climbers, and the rocky heights are also home to the endearing American pika. Mule deer, many with fawns, inhabit the lower valley, which is awash with spring color.

In the wooded valley, a pine squirrel falls prey to the voracious bobcat. Here we find some of the oldest and tallest trees on earth: The giant sequoias, which are now a major attraction for visitors to the park.

A relaxing bobcat family is surprised by the appearance of a young black bear. Elsewhere, a raven family is threatened by the presence of a bald eagle circling above their nesting site.

Molten granite was cooled and scoured by glaciers, forming Yosemite’s almost surreal landscape with its many remarkable rock formations. Black bears inhabit the park and emerge each spring from their hibernation, ready to begin a new cycle of life.

As spring arrives, the remarkable and deadly poisonous Sierra newt moves to its traditional aquatic breeding grounds. Meanwhile, kingfishers fish the crystal clear Yosemite streams and squirrels play a dangerous game of chase with the hunting bobcats.

Protected by presidential decree, the breathtaking mountainous terrain of the Yosemite Valley is now a national park, enjoyed by many human visitors, while still home to the wild creatures and stunning vegetation that has inhabited it for millennia / centuries.

A coyote and a golden eagle fight over the carcasses of animals that did not survive the frozen winter, and a mother bobcat teaches her kittens to hunt through the snow.

Autumn arrives, and the bison rut draws to an end. For many animals, this is a time of quiet preparations. They are getting ready for the hardships of another winter as the cycle of the seasons continues.