Araucaria columnaris, known as Cook pine, is a tree endemic to New Caledonia in the Melanesia region of the southwestern Pacific Ocean. Cook pines have been known to grow at peculiar angles and scientists have discovered why – it is because they always tilt towards the equator. The further the trees are from the equator the more they tilt. Many plants are able to lean towards a source of light when it is not directly above – a characteristic known as phototropism. On average Cook pines tilt by 8.55 degrees, which is twice as much as the Leaning Tower of Pisa.