Endemism is the ecological state in which a species or organism is native to and restricted to a single geographic location and is not found naturally anywhere else on Earth. Isolation plays a prominent role in the evolution of endemic species. Islands such as Madagascar, Hawaii, and the Philippines host high percentages of endemic species. […]

The Okavango Delta is born of water that originates in the highlands of Angola. Snowmelt from the mountains flows through the Caprivi Strip, a narrow block of land in Namibia, before entering the panhandle of the delta in northern Botswana. From the panhandle, the waters of the Okavango spread across the sands of the Kalahari […]

Seeing a grizzly bear in the wild is an undeniable thrill. These apex predators dominate the lands they roam. Supremely powerful and perfectly adapted to thrive in the wilds of North America, the grizzly bear (Ursus arctos horribilis) stands alone as the most feared and revered species on the continent.  From the Kenai Peninsula to […]