Madagascar

Madagascar broke away from mainland Africa roughly 160 million years ago as part of the ancient supercontinent Gondwana's slow breakup, and it's been drifting in isolation in the Indian Ocean ever since. That much time alone produced one of the most distinctive evolutionary outcomes anywhere on Earth: an estimated 90 percent of Madagascar's plants and animals exist nowhere else, including every single one of the roughly 100-plus lemur species recognized today, none of which occur naturally on the African mainland just a few hundred kilometers away.

Andasibe-Mantadia National Park, a few hours from the capital Antananarivo, gives most first-time visitors their easiest access to this isolation's most famous result. The park is home to the indri, the largest living lemur species, known for a call so loud and distinctive it's been compared to whale song and remains audible to hikers more than a kilometer away through dense forest, often before the animal itself comes into view.

Further west, near the town of Morondava, the Avenue of the Baobabs holds roughly 20 to 25 massive baobab trees, some estimated at more than 800 years old, standing in open farmland after centuries of surrounding forest clearance left them isolated along a single dirt road. The scene, especially photographed at sunset when the trees silhouette against an orange sky, has become one of Madagascar's most recognizable images internationally, even for people who know little else about the island.

Getting around Madagascar requires genuine planning. Road infrastructure outside the main routes connecting major towns can be rough and slow, and the country's varied, often mountainous or forested terrain means that a relatively short distance on a map can translate into a genuinely long overland journey. Most visitors rely on a combination of domestic flights between regional hubs and local guided transport for the final approach into specific national parks and reserves.

Madagascar's isolation, the same force that produced its extraordinary wildlife, has also left much of the island's biodiversity under serious pressure from deforestation and habitat loss, and conservation-focused tourism, including entrance fees that directly fund park management and local community programs, plays a genuinely direct role in the reserves' ongoing protection.