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WWF works to sustain the natural world for the benefit of people and wildlife, collaborating with partners from local to global levels in nearly 100 countries.
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Gray wolves are part of the dog or Canidae family, a group characterized by their intelligence and adaptability. Like other members of the dog family, wolves are very territorial, laying claim to familiar den sites, travel routes and feeding grounds.
Bats emit high-frequency sound pulses that help them "see" to move and hunt in the dark. Many bats have unusually large ears or odd looking structures in their ears to aid in echolocation.
For nearly 60 years, World Wildlife Fund has been protecting the future of nature. WWF's mission is to conserve nature and reduce the most pressing threats to the diversity of life on Earth.
Once common throughout Africa and Asia, elephant numbers were severely depleted during the 20th century, largely due to the massive ivory trade. While some populations are now stable and growing, poaching, conflict and habitat destruction continue to threaten the species.
Great horned owls are the most common owl in the Americas. They can be identified by the distinct tufts of feathers on the top of their heads. These owls prey on a wide variety of animals, from squirrels to raccoons to skunks.
Long ago, rhinos were widespread across Africa's savannas and Asia's tropical forests. But today very few rhinos survive outside national parks and reserves. At least two rhinos are killed every day due to the mistaken belief that rhino horn can cure diseases.
African lions inhabit the plains and savannahs throughout most of sub-Saharan Africa. These carnivores will eat most large ungulates, or hoofed species. African lions are the most social of all big cats and live together in groups or “prides.”
Great white sharks are found in most temperate waters throughout the world. Caught for their jaws, teeth, leather and fins, which collect high prices and are in demand worldwide, great white sharks also face the threat of accidental capture in fishing gear.
After a century of decline, tiger numbers are on the rise. At least 3,890 tigers remain in the wild, but much more work is needed to protect this species that's still vulnerable to extinction.