An optical illusion personality test uses an image of trees, roots, and lips to reveal if someone is an extrovert, introvert, ...

The scratch test can be used on any plant that grows bark, from shade trees to hedge shrubs, hydrangeas and roses. With woody plants, Farfaglia said to keep in mind that tops — upper limbs ...

In the depths of a Chilean rainforest stands the 'Gran Abuelo,' an approximately 5,400-year-old tree fighting for survival. A ...