Why fungi light up has remained a mystery... 蘑菇发光的原因一直是个谜团
300 years ago, this Hura tree began its race for light. 三百年前这棵响盒子就开始努力汲取阳光
...so even the plants must battle for the light they need 所以即使是植物也要争夺生长
Jungles have just the right amount of light, water and nutrients, 丛林拥有适宜的光照 水源和养分
Now, in the light of day, the young are extremely vulnerable. 现在是白天,小海龟们很容易受到攻击
Gazing ever upwards, it watches for prey, silhouetted against the faint glimmerings of light from the surface. 向上凝视, 可让它在微弱光线的环境下发现猎物的影像
Within a matter of weeks the canopy has closed and only a few wheeling shafts of light penetrate the woodland. 再过几个星期,树冠层重新遮蔽天空, 透到地面的只有丝丝缕缕的阳光
The ground living plants are in a hurry. Before long the trees above will come into leaf and steal their light. 地表植物正在匆忙生长, 不久之后,树木长出的新叶将会重新把阳光夺去
Being broad, these leaves trap much more light than needles 不仅叶子能比针叶吸收更多阳光
their growth cut short by the diminishing light. 大部分的植物因为缺少阳光而生长缓慢