Just as the silk worm eats the leaf of marugar (Morus alba) or oak (Quercus robur), which has a tooth shape, most animals have to eat some leaf or other. You're gonna need it! Plants themselves maintain their way of life without having to eat anyone else. We animals have no choice but to eat other living things if we want to live. Having to die to live... Over the course of the year and the millennium, poor plants have had to learn how to protect themselves from their teeth. In the evolution of evolution, everyone has invented, organized, curated and sharpened their own tricks.

Some have adapted the leaf itself and sewn it with thorns. Gorostia, Ilex aquifolium, we have one of these. As far as the cattle and other foliage reach, the leaves will be spread by the thorn, while the leaves above will have a very smooth edge. Feeding thorns to leaves where no one is afraid to eat what to waste energy on?

Others, instead of leaves, have thorns in the wood: thorns (white, Crataegus sp., and black, Prunus spinosa), archaea (Rosa canina), laharra (Rubus fruticosus), pseudo-acacia (Robinia pseudoacacia), acacia (Acacia sp. )... Anyone brings the subtle smooth lips or the sensitive tongue closer to these thorns... Animals know it, but if you bite these plants, you have to do it before the puja is fully tempered and hardened. The sheep grasps the worm like this, from the sweetest new tip.

There's another green-eater in Africa who plays the sheep, the giraffe. Acacia xanthophloea, stretches its neck over large acacias and eats the buds of its branches, also edible soft spines. Like the giraffe, the acacia is also not short and adds a substance that bites the leaf to protect itself. It also triggers the alarm, letting the acacias in the area know that the giraffes circulate in the area and spreading the warning so that this substance is carried to the leaves, through an “explosion” that spreads through the air, when the agida. The giraffe, with its neck, will also come to the acacia not short and from the opposite side of the wind.