Biology of depression. Scientific studies have found that numerous brain areas show altered activity in patients suffering from depression, and this has encouraged advocates of various theories that seek to identify a biochemical origin of the disease, as opposed to theories that emphasize psychological or situational causes.
1 They eat the roots and stems of small and young plants which can cause disease and kill the plants. 2  An often over looked problem that grubs cause is they attract other pests. 3  Many animals eat grubs and that can damage your lawn as well.
Chickens also eat less exciting foods, like vegetables, fruits, flowers and grass. They eat grains and seeds. They scratch the ground and find bugs and specks of things that we canât see. So, the question isnât really what chickens eat, but what the right diet is for them. In the 19th century most chickens were barnyard scavengers. They hatched out under their mamas and were taught to look for grain in the horse stalls, and for bugs and greens in the garden.