Why does braitman say that we owe our entire psychopharmaceutical arsenal to animals? explain. this is veternary science question by the way

Braitman says we owe the psychopharmaceutical weapons store to creatures since the greater part of the medications made for psychological instabilities like antidepressants, antipsychotics, and so forth were first tried on creatures. They were tried for poisonous quality, as well as for treatability. They demonstrated to work extremely well, this demonstrated the researchers that it worked for people and communicated that creatures have these ailments as well.