公牛 sharks can swim from salt water into fresh water, and on the coast of South of Africa these sharks occasionally encounter Africa's deadliest animal, the hippo.
Embark on this virtual reality experience with an international coalition of biologists, geologists, glaciologists, meteorologists, and geographers as they study the effects of climate change in one of the most extreme environments on Earth.
Immerse yourself with a team of scientists, climbers, and Sherpa guides as they embark on an expedition that will help define our understanding of high-mountain environments.
Hundreds of millions of people in the Himalayan region rely on glaciers for their water supply. Global climate change is forcing many to leave their homes in 搜索 of new beginnings.
更多 than half of the migratory bird species in North America are declining. In order to conserve these migrating birds, conservation scientist and National Geographic explorer Kristen Ruegg is tracking bird DNA with the Bird Genoscape Project.
INTO THE 火, 消防 follows an all-female team of Yazidi mine clearers in Iraq, working to rid the land of IEDs left behind 由 ISIS and to heal themselves in the process.
Iberá National Park in northeastern Argentina is part of one of the largest wetlands in South America, but much of its wildlife went extinct in the 20th century due to widespread hunting and habitat loss.
