Here are five of the more unusual trees you might want to spot on your travels. The national tree of Yemen is so called because of the deep red resin in its bark which appears to bleed when cut. Yet ...

"It's shocking and very sad to see them dying." The trees that have died or are dying are found in Zimbabwe, Namibia, South Africa, Botswana and Zambia. They are all between 1,000 and more than ...