The planet was not, as he had begun to fear, lifeless except for sorns. Here was a very presentable sort of animal, an animal which man could probably tame, and whose food man could possibly share. If only it were possible to climb the ‘trees’! He was staring about him with some idea of attempting this feat, when he noticed that the devastation wrought by the leaf-eating animals had opened a vista overhead beyond the plant-tops to a collection of the same greenish-white objects which he had seen across the lake at their first landing.