For Bengal tigers to thrive in the wild, they need thick forests, plenty of water and plenty to eat.

NPR: Poachers Put Bengal Tiger in Additional Peril

The choice crop of landowners looking to cash in on palm oil, the trees grew along the river in thick forests covering thousands of acres.

CNN: Seeds of hope in fields of war

Today, however, a range of newly popular active sports are reinvigorating the former battlefields, as travellers discover a world of ice-blue rivers, rugged hills and thick forests, which unfurls south from Karlovac to meet the vertiginous Velebit mountains that rise up towards the coast.

BBC: Croatia��s adventurous heart

There, thick emerald forests give way to wild grasslands reminiscent of the African savannah.

BBC: Getting to the heart and soul of hilly Sri Lanka

Having already spent a night at the Ark, a quirky Noah's Ark-like lodge tucked into the thick, verdant forests of Kenya's Aberdare National Park, I was familiar with the drill: one bell meant elephants arriving to the salt lick and watering hole that the back of the lodge overlooks.

BBC: Safari in Kenya without four wheels

He lived and hiked among dense eucalyptus forests in the Dandenong Ranges National Park, which were thick with mosquitoes whose bites scarred his face.

NEWYORKER: No Secrets