The trees in the forest are not just a random group. Fascinating facts reveal pine tree family relationships. The pollen that floats in the air can spread for hundreds of kilometers, but the offspring are usually found in the neighborhood. The trees in the forest are not just a random group. Fascinating facts reveal pine tree family relationships. The pollen that floats in the air can spread for hundreds of kilometers, but the offspring are usually found in the neighborhood. Ecology Molecular & Computational biology Phys.org – latest science and technology news stories