A Journey Across Our Planet | 4K UHD | Planet Earth II | BBC Earth

Recent questions

• What is the definition of a hummingbird?

  A hummingbird is a small, colorful bird known for its ability to hover in mid-air due to rapid wing flapping. They are primarily found in the Americas and are recognized for their unique feeding habits, often consuming nectar from flowers. Hummingbirds have specialized adaptations, such as long, slender bills that allow them to access nectar deep within flowers, which many other birds cannot reach. Their vibrant plumage and rapid wing beats make them a favorite among bird watchers and nature enthusiasts. Additionally, they play a crucial role in pollination, contributing to the health of various ecosystems.

• How do I care for urban pigeons?

  Caring for urban pigeons involves providing them with a safe environment, access to food, and clean water. Pigeons are often found in cities and can thrive in urban settings, but they face various threats from predators and environmental hazards. To help them, you can set up feeding stations with birdseed or grains, ensuring that the food is fresh and free from contaminants. It's also important to provide clean water sources, as hydration is essential for their health. Additionally, creating safe nesting areas can help protect them from predators and harsh weather conditions. However, it's crucial to avoid overfeeding and to maintain a balance to prevent dependency on human-provided food.

• What are the benefits of wild horses?

  Wild horses play a significant role in maintaining the ecological balance of their habitats. They contribute to the health of grasslands by grazing, which helps control plant overgrowth and promotes biodiversity. Their movement across the landscape can also aid in seed dispersal, allowing various plant species to thrive. Additionally, wild horses are an important cultural symbol and attract tourism, which can benefit local economies. However, their populations need to be managed to prevent overgrazing and ensure that they coexist sustainably with other wildlife and human activities. Understanding their behavior and social structures is essential for effective conservation efforts.

• What do bears eat in the summer?

  During the summer months, bears primarily focus on gaining weight to prepare for hibernation. Their diet consists of a variety of foods, including berries, nuts, fruits, and vegetation, which are abundant during this season. Bears are opportunistic feeders and will also consume insects, fish, and small mammals when available. The high caloric intake during summer is crucial for building fat reserves, which they rely on during the winter months when food is scarce. Additionally, bears engage in behaviors such as rubbing against trees to shed their winter coats and mark their territory, which helps them avoid conflicts with other bears while foraging for food.

• What threats do red crabs face during migration?

  Red crabs face several threats during their annual migration to the sea, primarily from invasive species like yellow crazy ants. These ants have formed super colonies and attack the crabs by squirting acid into their eyes and mouths, leading to blindness and disorientation. This predation significantly impacts the crabs' ability to complete their migration, which is essential for breeding. Additionally, habitat destruction and climate change pose further challenges to their survival. Conservation efforts are crucial to protect these crabs during their migration, ensuring that they can reach the sea safely to reproduce and maintain their population.